Analog Science Fiction / Science Fact April 1988 Very Good

Analog Science Fiction / Science Fact June 1984 Good

Analog Science Fiction / Science Fact November 1988 Very Good

Analog Science Fiction / Science Fact October 1982 Very Good

Analog Science Fiction / Science Fact July 1977 Very Good

Analog Science Fiction / Science Fact September 1987 Very Good

Analog Science Fiction / Science Fact May 1978 Very Good

Analog Science Fiction / Science Fact November 1990 Very Good