Books about Human-alien encounters -- Fiction (sorted alphabetically)
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This World is Ours! Emil Petaja
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thought-feeders R. R. Winterbotham
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Thought-Men of Mercury R. R. Winterbotham
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Threlkeld's Daughter James Bell
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Thunder in the void Henry Kuttner
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Ticket to the Stars Raymond E. Banks
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Tiger by the Tail Poul Anderson
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Time of Cold Mary Carlson
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Time-Techs of Kra Max C. Sheridan
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time to die Harold Calin
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Today is Forever Roger D. Aycock
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To Save Earth Edward W. Ludwig
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To the sons of tomorrow Irving E. Cox
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Tourists to Terra Mack Reynolds
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Toy Kris Neville
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Traitor's Choice Paul W. Fairman
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Trajectory to Taurus Les Cole
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Transmutation of Muddles H. B. Fyfe
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Travelogue Roger D. Aycock
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Treasure of Triton Charles A. Baker
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Tree of Life C. L. Moore
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Triplanetary E. E. Smith
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Triplanetary E. E. Smith
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Trouble on Tycho Nelson S. Bond
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Try to remember! Frank Herbert