Analog Science Fiction / Science Fact June 1987 Good-

Analog Science Fiction/Science Fact Vol. 107 #12 and #13 1987 Vintage

Analog Science Fiction Science Fact December 1987 Bujold/Anvil/Gribbin

Analog Science Fiction Science Fact Magazine July 1987 BOVA SHEFFIELD TURTLEDOVE

Analog Science Fiction Science Fact Magazine June 1987 BOVA FLYNN TURTLEDOVE

Analog Science Fiction Science Fact Magazine February 1987 NIVEN BURNS ZEBROWSKI

Analog Science Fiction / Science Fact December 1987 Good

Analog Science Fiction Science Fact Magazine January 1987 NIVEN ASIMOV STEWART