Books about Human-alien encounters -- Fiction (sorted by popularity)
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The Unprotected Species
Melvin Sturgis
166 downloads
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The Test Colony
Winston K. Marks
165 downloads
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Juggernaut of Space
Ray Cummings
165 downloads
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Advance Agent
Christopher Anvil
164 downloads
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The Invaders
Murray Leinster
164 downloads
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The voice of the void
Jr. John W. Campbell
164 downloads
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The untouchable adolescents
Harlan Ellison
163 downloads
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Cosmic striptease
Harlan Ellison
163 downloads
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The Flame Breathers
Ray Cummings
162 downloads
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The Winds of Time
James H. Schmitz
162 downloads
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The Onslaught from Rigel
Fletcher Pratt
162 downloads
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The Lonely Ones
Edward W. Ludwig
162 downloads
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Menace From Vega
Randall Garrett and Robert Silverberg
162 downloads
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The Inhabited
Richard Wilson
161 downloads
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Citadel of the Star Lords
Edmond Hamilton
161 downloads
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Gods of Space
Ray Cummings
160 downloads
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Do Unto Others
Mark Clifton
160 downloads
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Never Trust a Thief!
Robert Silverberg
159 downloads
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The Ignoble Savages
Evelyn E. Smith
159 downloads
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The Repairman
Harry Harrison
159 downloads
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What's He Doing in There?
Fritz Leiber
159 downloads
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Quinquepedalian
Piers Anthony
159 downloads
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The Weirdest World
R. A. Lafferty
158 downloads
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Fog of the Forgotten
Basil Wells
158 downloads
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The Next Time We Die
Robert Moore Williams
158 downloads