Books about Human-alien encounters -- Fiction (sorted by popularity)
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The Gravity Business
James E. Gunn
187 downloads
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Try to remember!
Frank Herbert
186 downloads
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Doorstep
Keith Laumer
185 downloads
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The Enormous Word
William Oberfield
185 downloads
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Remember me, Kama!
Walter Kubilius
185 downloads
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The overlord's thumb
Robert Silverberg
185 downloads
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The space visitors
Edmond Hamilton
183 downloads
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Felony
James Causey
183 downloads
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Pogo Planet
Donald A. Wollheim
182 downloads
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Citadel of the Green Death
Robert Emmett McDowell
182 downloads
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Spacemen lost
George O. Smith
181 downloads
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The Inhabited
Richard Wilson
181 downloads
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The mystery of Deneb IV
Robert Silverberg
181 downloads
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Round-Up Time
Chester Cohen
181 downloads
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Special Delivery
Kris Neville
180 downloads
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The Sword
Frank Quattrocchi
180 downloads
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Stamped Caution
Raymond Z. Gallun
180 downloads
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Fine Feathers
George O. Smith
180 downloads
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The Very Secret Agent
Mari Wolf
179 downloads
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The Little Pets of Arkkhan
Bill Garson
178 downloads
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Lumen
Camille Flammarion
178 downloads
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Proxy Planeteers
Edmond Hamilton
177 downloads
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Message From Mars
Clifford D. Simak
176 downloads
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Return Engagement
Margaret St. Clair
176 downloads
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Crisis on Titan
James R. Adams
175 downloads
