Analog Science Fiction Science Fact April 1989 Stiegler/Delaney/Cook

Analog Science Fiction / Science Fact July 1989 Good

Analog Science Fiction / Science Fact September 1989 Good+

Analog Science Fiction / Science Fact November 1989 Good+

Analog Science Fiction - Science Fact - Multiple Titles to Choose From 1975-1989

Analog: Science Ficton Science Fact - April 1989

Analog Science Fiction / Science Fact June 1989 Very Good

Analog Science Fiction/Fact April 1989 Vintage