Books about Human-alien encounters -- Fiction
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Cosmic Saboteur
Frank M. Robinson
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Cosmic striptease
Harlan Ellison
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Cosmic Tragedy
Thomas S. Gardiner
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Course of Logic
Lester Del Rey
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Crisis!
C. M. Kornbluth
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Crisis on Titan
James R. Adams
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Crowded Colony
Jerome Bixby
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Cry from a Far Planet
Tom Godwin
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Crystal Circe
Henry Kuttner
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crystal planetoids
Stanton A. Coblentz
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Cultural Exchange
Jesse F. Bone
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Customs Lounge
Annie Proulx
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Dancers
Margaret St. Clair
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Dark Goddess
Richard S. Shaver
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Dawningsburgh
Wallace West
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Day of Wrath
Bjarne Kirchhoff
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Definition
Damon Knight
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Destination—Death
Wilbur S. Peacock
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Diplomatic Immunity
Robert Sheckley
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Don't Panic!
Robert W. Krepps
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Doorstep
Keith Laumer
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Double Spy
Dan T. Moore
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Do Unto Others
Mark Clifton
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Dumbwaiter
James Stamers
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Earth Alert!
Kris Neville
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