Isaac Asimov's Science Fiction Magazine: September 1979 Cover: Vincent Di Fate (for "Enemy Mine")

Featured stories:
"The Backward Look" by Isaac Asimov (a "Black Widower" story)
"Jennings Operative Webster" by J. E. Walters
"SHAWNA, Ltd." By Frederick Longbeard (Barry B. Longyear)
"Solo" by Steve Perry & Jesse Peel
"Enemy Mine" by Barry B. Longyear (novella - winner of the Hugo award.)

Article "On the Fundamental Mystery of Physics" by Milton A. Rothman.