Analog Science Fiction and Fact July 1980 Anasazi Dean Ing

1973 Aug ANALOG SCIENCE FICTION & FACT Gordon R. Dickson HERBIE BRENNAN & more

1980 Jul ANALOG SCIENCE FICTION Dean Ing ASTROPHYSICS MARGARET L. SILBAR more

Analog Science Fiction Science Fact Feb 1969 Gordon R Dickson, Anne McCaffrey

Analog Science Fiction/Science Fact Vol. 100 #8 VF+ 8.5 1980

Analog Science Fact Science Fiction January 1969 Wolfling Gordon R. Dickson

Analog Science Fiction Science Fact Magazine July 1980 Anasazi by Dean Ing

Science Fiction Analog August 1973 The Far Call by Gordon R. Dickson