Books about Human-alien encounters -- Fiction (sorted by popularity)
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The Unprotected Species Melvin Sturgis 251 downloads
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The Winds of Time James H. Schmitz 251 downloads
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What's He Doing in There? Fritz Leiber 250 downloads
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Advance Agent Christopher Anvil 250 downloads
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Nobody saw the ship Murray Leinster 249 downloads
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The Giants From Outer Space Robert W. Krepps 248 downloads
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Les Xipéhuz (French) aîné J.-H. Rosny and jeune J.-H. Rosny 248 downloads
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The Very Secret Agent Mari Wolf 247 downloads
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Summer Guests James H. Schmitz 247 downloads
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Strange Exodus Robert Abernathy 247 downloads
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Bedside Manner Joseph Samachson 247 downloads
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Reign of the telepuppets Daniel F. Galouye 245 downloads
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The ordeal of Lancelot Biggs Nelson S. Bond 244 downloads
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Doorstep Keith Laumer 244 downloads
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The Tree of Life C. L. Moore 244 downloads
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Juggernaut of Space Ray Cummings 242 downloads
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Cultural Exchange Jesse F. Bone 241 downloads
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Cosmic Saboteur Frank M. Robinson 241 downloads
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Cry from a Far Planet Tom Godwin 240 downloads
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Do Unto Others Mark Clifton 240 downloads
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Aide Memoire Keith Laumer 240 downloads
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The Enormous Word William Oberfield 239 downloads
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Woman's touch Evelyn E. Smith 238 downloads
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Boarding party Robert F. Young 237 downloads
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Spacemen lost George O. Smith 237 downloads