Analog Science Fiction / Science Fact June 1987 Good-

Analog Science Fiction / Science Fact December 1987 Good

Analog Science Fiction Science Fact Magazine January 1987 NIVEN ASIMOV STEWART

Analog Science Fiction / Science Fact September 1987 Very Good

Analog Science Fiction / Science Fact Mid-December 1987 Good

Analog Science Fiction Science Fact Magazine June 1987 BOVA FLYNN TURTLEDOVE

Analog Science Fiction/Science Fact Vol. 107 #1 VG 4.0 1987 Stock Image

Analog Science Fiction Science Fact January, February, March 1987