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Tuf Series Analog, October 1981 Cover art by Robert Crawford Analog, October 1981Cover art by Robert Crawford  Analog, Mid-December 1985 Cover art by Janet Aulisio Analog, Mid-December 1985Cover art by Janet Aulisio  Analog, January 1985 Cover art by Doug Beekman Analog, January 1985Cover art by Doug Beekman |
