- The Trials of Commander McTurk, No. X: The McMechie Submarine by C. J. Cutcliffe Hyne · (ss)
- The Trials of Commander McTurk, No. XI: Kidnapped by C. J. Cutcliffe Hyne · (ss)
- The Trials of Commander McTurk, No. XII: The Glorious Restoration by C. J. Cutcliffe Hyne · (ss)
- The Trials of Eliphalet Pink by Edwin A. Locke · (ss)
- The Trials of Fatherhood by James Fitton · (pi)
- The Trials of Finch by Zadie Smith · (ss)
- The Trials of Hank Janson by Stephen Holland · (ar)
- Trials of Housekeeping by Ellen Ashton · (vi)
- The Trials of Isador by C. S. Goto · (nv)
- The Trials of Lady Dyther by S. L. Bensusan · (ss)
- The Trials of Laughing Lily by R. S. Kirkham · (n.)
- The Trials of Laughing Lily by Hilary Marlow · (n.)
- The Trials of Lemons by Colleen Anderson · (pm)
- Trials of Love by Anton Chekhov · (vi)
- The Trials of Love by [uncredited] · (ts)
- The Trials of Lyda Pew by Kristen Mitchell · (ss)
- The Trials of Madge Moberley by Florence Hope · (sl)
- The Trials of Magazine Editors by Junius Henri Browne · (ar)
- The Trials of Man by Tevis Shkodra · (ss)
- The Trials of Margaret by L. C. Tyler · (ss)
- Trials of Margaret Hepsibah by Lydia C. Graves · (ss)
- Trials of Mindin’ De Kid by W. S. S. · (ss)
- The Trials of Mrs. Julia O’Grady by Mary Sargent Hopkins · (sl)
- Trials of Mrs. Macy by Anne Warner · (ss)
- The Trials of Mrs. Timm by S. L. Bensusan · (ss)
- The Trials of Rollo by Barry N. Malzberg · (vi)
- The Trials of Rose Templeton by Edwin F. Roberts · (sl)
- The Trials of Sigmund by Barry N. Malzberg · (ss)
- The Trials of Storrydene Villa by Walter Edwards · (sl)
- The Trials of Storrydene Villa by Walter Shute · (sl)
- The Trials of Storrydene Villa by [uncredited] · (sl)
- The Trials of Tattooed Tzum by H. H. Matteson · (ss)
- The Trials of Teddy! by Owen Conquest · (ss)
- The Trials of Teddy! by Charles Hamilton · (ss)
- Trials of Temper by [uncredited] · (ss)
- The Trials of the Bantocks Preface by G. S. Street · (lk)
- The Trials of the Bantocks Mr. Bantock’s Thorn by G. S. Street · (ss)
- The Trials of the Bantocks II. The Dreadful Governess by G. S. Street · (ss)
- The Trials of the Bantocks III. The Ordeal of Russell Bantock by G. S. Street · (ss)
- The Trials of the Bantocks, IV. Bad Cousin Charlotte by G. S. Street · (ss)
- The Trials of the Bantocks, V. The Prematurity of Henry Somers by G. S. Street · (ss)
- The Trials of the Bantocks, VI. Tom’s Profession by G. S. Street · (ss)
- The Trials of the Bantocks, VII. Moss by G. S. Street · (ss)
- The Trials of the Bantocks, VIII. Ethel’s Socialism by G. S. Street · (ss)
- The Trials of the Bantocks, IX. The Tragedy of the Hamper by G. S. Street · (ss)
- The Trials of the Bantocks. The Athletic Sports by G. S. Street · (ss)
- The Trials of the Bantocks. Mrs. Bantock’s Portrait by G. S. Street · (ss)
- The Trials of the Bantocks. Concluding Words by G. S. Street · (ss)
- The Trials of the Cavalry Recruit by An Ex-18th Hussar · (lt)
- Trials of the Dead King by Eric Rosenfield · (ss)
- Trials of the Heart by Emma T. Wilson · (ss)
- The Trials of Thelma Wayne by Mildred Gordon · (n.)
- The Trials of Thelma Wayne by J. G. Jones · (n.)
- Trials of the Neutral Kings by J. W. McConaughy · (ar)
- Trials of the Talkies by Albert Boswell · (ar)
- The Trials of the Tall by Laurie Tayler · (hu)
- The Trials of the Tea Ladies by Ella D’Arcy · (ss)
- The Trials of the Tea Ladies by Gilbert H. Page · (ss)
- The Trials of the Tribulation by Michael Joseph Gross · (ar)
- Trials of the Twenty-Fifth by Lesbia Robinson · (ar)
- Trials of the Wife of a Literary Man by K. · (ar)
- The Trials of Tony: An Excellent Opening by J. Storer Clouston · (ss)
- The Trials of Tony: He Falls on His Feet by J. Storer Clouston · (ss)
- The Trials of Tony: His Last Chance by J. Storer Clouston · (ss)
- The Trials of Tony: “Man Proposes…” by J. Storer Clouston · (ss)
- The Trials of Truth by Douglas Jerrold · (ss)
- Trial Spin by John Baldwinson · (ss)
- The Trial Spin by Earl Hennessy · (ss)
- Trials Series: Some Notable, Some Not by Jonathan Goodman · (ar)
- Trial Surgery by Kenneth Landon · (ss)
- Trial Tactics by Joe L. Hensley · (ss)
- The Trial That Saved Democracy by Joseph Dean · (ar)
- The Trial That Shook Washington by Harold Thornton · (ia)
- The Trial Trip by T. C. Bridges · (ss)
- A Trial Trip by D. Caley · (ss)
- A Trial Trip by Louise Elizabeth Dutton · (ss)
- A Trial Trip by William Freeman · (ss)
- A Trial Trip by Louis Guinnis · (il)
- Trial Trip by Charles Newton Hood · (ss)
- A Trial Trip by Ernest E. Joyce · (ss)
- The Trial Trip of a Cruiser by William Floyd Sicard · (??)
- Trial Trip of the “Flying Cloud” by Jason Rockwood Orton · (ss)
- Trial Trip of the “Flying Cloud” by [uncredited] · (ss)
- Trial Trips by W. A. Darlington · (ss)
- The Trial Turn by C. H. Bovill · (ss)
- Trial Verdict by Bernard O’Donnell · (ts)
- Trial Week-end by Helen Compton · (nv)
- The Trial Weekend by Alice Eleanor Jones · (ss)
- Trial Without Combat by Theodore L. Thomas · (nv)
- Trial Without Error by Wilbur Scott Peacock · (ss)
- Trial with Steel by Charles Neill · (vi)
- Triangle by Sarah Addington · (ss)
**Triangle**by Isaac Asimov · (SFBC, May 1961, om)- Triangle by Lilith Benda · (ss)
- Triangle by Pierre Boileau · (ss)
- Triangle by Anthony Boucher · (ss)
- Triangle by Ray Bradbury · (ss)
- Triangle by Lucia Bronder · (ss)
- Triangle by Donn Byrne · (ss)
- Triangle by Jeffery Deaver · (ss)
- Triangle by David Delman · (na)
- Triangle by Bryan Oswald Donn-Byrne · (ss)
- Triangle by George Florance-Guthridge · (ss)
- Triangle by Ruth Pine Fumiss · (ss)
- Triangle by Floyd C. Gale · (br)
- The Triangle by A. P. Garland · (ss)
- Triangle by Floyd C. Gold · (br)
- Triangle by Kathreen Gorman · (ss)
- The Triangle by Walter E. Grogan · (ss)
- Triangle by Odgers T. Gurnee · (ss)
- Triangle by George Guthridge · (ss)
- Triangle by William T. Harrel · (ss)
- Triangle by Marion King · (vi)
- Triangle by Barton Paul Levenson · (ss)
- Triangle by Robert Lord · (ss)
- The Triangle by Dorothy Margarette Selby Lowndes · (ss)
- Triangle by Bruce McAllister · (ss)
- Triangle by John D. MacDonald · (ss)
- Triangle by John Malone · (ss)
- The Triangle by Stuart Martin · (ss)
- Triangle by Austin Parker · (ss)
- The Triangle by Pat Pitman · (ar)
- Triangle by Marguerite Roberts · (vi)
- Triangle by Judith Saylor · (ss)
- The Triangle by Lida Clara Schem · (ss)
- A Triangle by Clinton Scollard · (pm)
- The Triangle by Louise Deforest Shelton · (ss)
- The Triangle by Curtis Sittenfeld · (vi)
- Triangle by Frederick Skerry · (vi)
- Triangle by Dianne M. Thompson · (ss)
- The Triangle by Laurence Vail · (ss)
- The Triangle by Garnet Warren · (vi)
- Triangle by Teri White · (n.)
- The Triangle by Colin Wilson · (ar)
- Triangle by Andrew Wood · (ss)
- The Triangle by Dolf Wyllarde · (ss)
- “Triangle 7” by Christopher B. Booth · (ss)
- Triangle 8 Plus Double X Box by Christopher B. Booth · (nv)
- Triangle 8 Plus Double X Box by John Jay Chichester · (nv)
- A Triangle and a Tiger by Herbert L. Vahey · (ss)
- The Triangle and Its Strength by X“” ——— · (ss)
- The Triangle at Lépines by Gilbert Frankau · (ss)
- Triangle at Rhodes by Agatha Christie · (nv)
- Triangle at Sea by Anna Clarke · (ss)
- Triangle by Arrangement by E. Hoffmann Price · (ss)
- A Triangle Case by Bonnie R. Ginger · (ss)
- The Triangle Cupid by Charles Alden Seltzer · (ss)
- Triangle Dot Strays by Guthrie Brown · (ss)
- Triangled Triggers by Cliff Walters · (ss)
- Triangle Eyes by Chris Clemens · (vi)
- The Triangle Factory Again by [uncredited] · (ms)
- Triangle for Murder by Diana Bradley · (ss)
- Triangle: Imzadi II by Neil Jones · (br)
- Triangle in Lavender by Jan Savage · (??)
- A Triangle in Sacks by Charles C. Jenkins · (ss)
- Triangle in Steel by Thomas H. Raddall · (ss)
- Triangle in the Air by Frances Marion · (ss)
- Triangle in the Air by Marion Benson Owens · (ss)
- Triangle in the Sky by Roger Garis · (ss)
- The Triangle Murder by [uncredited] · (sa)
- The Triangle of Betrayal by F. W. Murray · (ss)
- Triangle of Chance by Joseph Laurance Marx · (n.)
- The Triangle of Death by David Marcum · (ss)
- Triangle of Death by Martin N. Nixon · (tc)
- Triangle of Hate by Joe Burke · (ss)
- A Triangle of Love by Marion Ames Taggart · (ss)
- Triangle of Love and—Death by Joseph Fulling Fishman · (ss)
- The Triangle of Meaning by Chris Lawson · (ar)
- Triangle of Power by John Russell Fearn · (nv)
- The Triangle of Terror by Edwin MacLaren · (nv)
- Triangle of Terror by J. Vincent Nolan · (nv)
- A Triangle of Terror by Grace Tabor · (ss)
- The Triangle of Terror by William F. Temple · (ss)
**Triangle of Terror**ed. [uncredited] · (Grafton Publications, November 1945, an)- A Triangle of Thieves by Marvin Dana · (ss)
- Triangle of Tragedy by John J. McPhaul · (tc)
- Triangle on a Schooner by Dan J. Marlowe · (ss)
- Triangle on a Schooner by Jaime Sandaval · (ss)
- The Triangle Plus by Edward Ettinger · (vi)
- The Triangle Puzzle by [uncredited] · (pz)
- Triangles by Armstrong Livingston · (ss)
- Triangles Are Forever by Ramez Yoakeim · (ss)
- Triangles Have Their Points by Geoffrey Pardoe · (ss)
- Triangle Showdown by Charles M. Martin · (na)
- The Triangle Signal by Earl W. Mayo · (na)
- Triangle Squared by Arthur Pound · (ss)
- The Triangle Tangle by William Le Queux · (ss)
- The Triangle That Lay Down on Its Job by Homer Croy · (ss)
- Triangle: The Currents of Space; Pebble in the Sky; The Stars Like Dust by Floyd C. Gale · (br)
- Triangle: The Currents of Space; Pebble in the Sky; The Stars Like Dust by Floyd C. Gold · (br)
- The Triangle Tragedy by Mims Sivley · (vi)
- Triangle Trouble by Karen Cookson · (ss)
- Triangle Trouble by Rhoda Troubetzkoy · (ss)
- Triangle Trouble by Thomas W. Wicks · (ss)
- Triangle with Corny, Small Town Values by J. Richard Reed · (ss)
- A Triangle Within a Triangle by Edgar Allen Forbes · (ss)
- Triangle Within Circle by Dmitri Nabokov · (ss)
- Triangle Within Circle by Vladimir Nabokov · (ss)
- The Triangle Within the Law by Howard E. Morgan · (ss)
- Triangle with Variations by E. Hoffmann Price · (ss)