Novelettes
"Unicorn Variation" by Roger Zelazny
"The House of If" by Barry B. Longyear
Short Stories
"The Polybugs of Titan" by Martin Gardner
"False Scent" by Rick Raphael
"The Hotter Flash" by J. O. Jeppson
"Graffiti" by Gary Alexander
"Instead of a Story" by Ted Reynolds
"Twitch on the Bull Run" by Sharon Webb
Poetry
"Unseen Connections" by Peggy J. Noonan
"An Ode to Pan-Galactic Spaceways, Inc." by Barbara S. Ryden
"Improbable Bestiary: The Unicorn" by F. Gwynplaine MacIntyre
Departments
"Editorial: Drawing the Line" by Isaac Asimov
"On Books" by Baird Searles
"The SF Conventional Calendar" by Erwin S. Strauss
"The Stuff Itself" by James Gunn
"Space and the Longevity of Man" by Stefan T. Possony and Jerry Pournelle
"Letters"
Isaac Asimov's Science Fiction Magazine, April 13, 1981, Vol. 5, No. 4
George H. Scithers, editor
Cover art by Robert Crawford
Language
English
Pages
180
Format
Paperback
Publisher
Davis Publications
Release
April 13, 1981
Isaac Asimov's Science Fiction Magazine, April 13, 1981 (Asimov's Science Fiction, #38)
Novelettes
"Unicorn Variation" by Roger Zelazny
"The House of If" by Barry B. Longyear
Short Stories
"The Polybugs of Titan" by Martin Gardner
"False Scent" by Rick Raphael
"The Hotter Flash" by J. O. Jeppson
"Graffiti" by Gary Alexander
"Instead of a Story" by Ted Reynolds
"Twitch on the Bull Run" by Sharon Webb
Poetry
"Unseen Connections" by Peggy J. Noonan
"An Ode to Pan-Galactic Spaceways, Inc." by Barbara S. Ryden
"Improbable Bestiary: The Unicorn" by F. Gwynplaine MacIntyre
Departments
"Editorial: Drawing the Line" by Isaac Asimov
"On Books" by Baird Searles
"The SF Conventional Calendar" by Erwin S. Strauss
"The Stuff Itself" by James Gunn
"Space and the Longevity of Man" by Stefan T. Possony and Jerry Pournelle
"Letters"
Isaac Asimov's Science Fiction Magazine, April 13, 1981, Vol. 5, No. 4
George H. Scithers, editor
Cover art by Robert Crawford