Books about Human-alien encounters -- Fiction (sorted alphabetically)
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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 Titan Henry Kuttner
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Trouble on Tycho Nelson S. Bond
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Try to remember! Frank Herbert
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Ultimate Eve H. Sanford Effron
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Ultimatum Roger D. Aycock
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Under the Skin Leslie Perri
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Uniform of a Man Dave Dryfoos
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Unprotected Species Melvin Sturgis
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untouchable adolescents Harlan Ellison
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Unwelcomed Visitor Joseph Samachson
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Unwilling Professor Arthur Porges
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Useless Bugbreeders James Stamers
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Vandals of the Void Robert Wilson
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vanguard of Venus Landell Bartlett
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Vanisher Michael Shaara
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Vanishing Venusians Leigh Brackett
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Vegans Were Curious Winston K. Marks
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Venus Enslaved Manly Wade Wellman