Addendum on the Symbolic Psionic Machine
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Overview:
- Title: Addendum on the Symbolic Psionic Machine
- Author: John W. Campbell, Jr.
- Year: 1957
- Type: Essays
Editions/Publications:
- Unknown. Astounding Science Fiction, June 1957 (Unknown, John W. Campbell, Jr., Street & Smith Publications, Inc., $0.35, 164 pages, digest, MAGAZINE)
- Unknown. Astounding Science Fiction, October 1957 (Unknown, John W. Campbell, Jr., Atlas Publishing and Distribution Co. Ltd, 1/9, 128 pages, digest, MAGAZINE)