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The K-Factor [2]

Summers

First published December 1960
Type Interior Art

Date Publication Publisher Type Page
December 1960 Cover Analog Science Fact -> Fiction, December 1960 Street & Smith Publications, Inc. MAGAZINE 44
April 1961 Cover Analog Science Fact -> Fiction, April 1961 Atlas Publishing and Distribution Co. Ltd MAGAZINE 41
September 2007 The K-Factor Project Gutenberg Chapbook