Analog Science Fiction / Science Fact April 1984 Good+

Analog Science Fiction / Science Fact June 1974 Very Good-

Analog Science Fiction / Science Fact Mid-December 1985 Very Good

Analog Science Fiction and Fact Mid-December 1991 Very Good+

Analog Science Fiction / Science Fact August 1983 Good+

Analog Science Fiction / Science Fact April 1988 Very Good

Analog Science Fiction / Science Fact July 1989 Good

Analog Science Fiction / Science Fact January 1984 Good+