Analog Science Fiction / Science Fact December 1979 Good

Analog Science Fiction / Science Fact March 1979 Good

Analog Science Fiction / Science Fact November 1979 Good+

Analog Science Fiction / Science Fact January 1979 Good+

Analog Science Fiction/Science Fact Vol. 99 #4 FN 1979

Analog Science Fiction / Science Fact September 1979 Good-

1979 Jul ANALOG SCIENCE FICTION & FACT Apollo 11 Anniversary MICHAEL McCOLLUM &c

Analog Science Fact & Fiction Magazine April 1961 Good Digest Clifford Simak