Isaac Asimov's Science Fiction Magazine: December 21, 1981.
Volume 5, Number 13 (whole #47.) Cover: Karl Kofoed (for "A Thief in Ni-Moya")

Featured stories:
"The Time-Warp Trauma" by J. O. Jeppson ("Pshrinks Anonymous" series)
"The Secret of Hyperborea" by Avram Davidson (Adventures in Unhistory)
"The Jarabon" by Lee Killough
"Wrong Number" by F. M. Busby
"Packing Up" by P. J. MacQuarrie
"End Game" by Brian Aldiss
"A Thief in Ni-Moya" by Robert Silverberg (novelette, "Majipoor" series.)