Books about Human-alien encounters -- Fiction (sorted by popularity)
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Citadel of the Star Lords
Edmond Hamilton
128 downloads
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Jackie sees a star
Marion Zimmer Bradley
128 downloads
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The Green World
Hal Clement
128 downloads
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The Galactic Ghost
Mack Reynolds
128 downloads
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Advance Agent
Christopher Anvil
127 downloads
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The Invaders
Murray Leinster
127 downloads
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Diplomatic Immunity
Robert Sheckley
127 downloads
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A Transmutation of Muddles
H. B. Fyfe
127 downloads
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Once a Greech
Evelyn E. Smith
127 downloads
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The Madcap Metalloids
Verne Athanas
126 downloads
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The Dancers
Margaret St. Clair
126 downloads
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Needler
Randall Garrett
125 downloads
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Big Stupe
Charles V. De Vet
125 downloads
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All That Earthly Remains
C. C. MacApp
124 downloads
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Common Denominator
John D. MacDonald
124 downloads
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The Good Seed
Mack Reynolds
124 downloads
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Task of Kayin
Joseph Samachson
123 downloads
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Mr. Meek Plays Polo
Clifford D. Simak
123 downloads
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Message From Mars
Clifford D. Simak
123 downloads
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The ordeal of Lancelot Biggs
Nelson S. Bond
123 downloads
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The invading asteroid
Manly Wade Wellman
123 downloads
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The Double Spy
Dan T. Moore
123 downloads
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The Barbarians
Tom Godwin
122 downloads
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The Plotters
Richard S. Shaver
122 downloads
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Tiger by the Tail
Poul Anderson
122 downloads
