The Magazine of Fantasy & Science Fiction: April 1982 (Volume 62, Number 4)
Cover by Carl Lundgren ("Swarm.")

Novelets: "Swarm" by Bruce Sterling ("Mech/Shaper" series; Hugo & Nebula nominee)
"The Blessing of La Llorona" by Don L. Daglow
"Station Gehenna" by Andrew Weiner.

Stories: "One Night of Song" by Isaac Asimov (an "Azazel" tale)
"Valhalla" by Gregory Benford
"The Bung-Hole Caper" by Thomas A. Easton
"That Frog" by Michael Shea
"The ECM War" by Nicholas Yermakov.

Science: "Change of Time and States" by Isaac Asimov.