Isaac Asimov's Science Fiction Magazine: July 1980. Cover: Karl Kofoed (for "Sing a Song of Mallworld")

Featured stories:
"Sing a Song of Mallworld" by Somtow Sucharitkul ("Mallworld"series - novelette)
"Out of Service" by John M. Ford
"Transference" by Sharon Webb
"Good Fences" by Juleen Brantingham
"The Mirror of Ko Hung" by E. Hoffman Price (novelette.)
Also: profile"Karl Kofoed" by Shawna McCarthy; and article "Variations on a Robot" by James Gunn.