The Invisible Invasion

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Overview:

Title: The Invisible Invasion
Author: Julian S. Krupa
Year: 1939
Type: Interior Art

Editions/Publications:

Unknown. Amazing Stories, April 1939 (Unknown, Julian S. Krupa, Ziff-Davis Publishing Company, $0.20, 148 pages, pulp, MAGAZINE)
Unknown. Science Fiction Adventure Classics, Summer 1971 (Unknown, Julian S. Krupa, Ultimate Publishing Co., Inc., $0.60, 132 pages, digest, MAGAZINE)