Analog Science Fiction / Science Fact December 1981 Good+

Analog Science Fiction / Science Fact July 1981 Very Good+

Analog Science Fiction / Science Fact August 1981 Very Good+

Analog Science Fiction / Science Fact April 1981 Very Good+

Analog Science Fiction / Science Fact May 1981 Very Good+

Analog Science Fiction / Science Fact March 2, 1981 Very Good+

Analog Science Fiction Science Fact June 1969 J.B. Clarke, Anne McCaffrey

Analog Science Fiction / Science Fact March 30, 1981 Very Good+