Books about Human-alien encounters -- Fiction
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Operation Terror
Murray Leinster
460 downloads
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The Plagiarist From Rigel IV
Evan Hunter
459 downloads
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Girl of the Silver Sphere
J. Harvey Haggard
459 downloads
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Boarding party
Robert F. Young
459 downloads
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Common Denominator
John D. MacDonald
458 downloads
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The Venus Trap
Evelyn E. Smith
458 downloads
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Fine Feathers
George O. Smith
458 downloads
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Export Commodity
Jr. Irving E. Cox
457 downloads
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Tourists to Terra
Mack Reynolds
456 downloads
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Thunder in the void
Henry Kuttner
456 downloads
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A Gift For Terra
Fox B. Holden
456 downloads
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The Sword
Frank Quattrocchi
456 downloads
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Invader From Infinity
George A. Whittington
456 downloads
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The Planet That Time Forgot
Donald A. Wollheim
455 downloads
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Nobody saw the ship
Murray Leinster
455 downloads
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Spacemen lost
George O. Smith
455 downloads
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Who Goes There?
Charles H. Davis
454 downloads
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The Good Seed
Mack Reynolds
454 downloads
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The high ones
Poul Anderson
454 downloads
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The leaf
Robert F. Young
454 downloads
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The thought-feeders
R. R. Winterbotham
453 downloads
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Return to Earth
Willis Knapp Jones
453 downloads
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The Polite People of Pudibundia
R. A. Lafferty
452 downloads
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Miss Tweedham's Elogarsn
Robert Moore Williams
451 downloads
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Problem on Balak
Roger D. Aycock
451 downloads