The Theory and Practice of Time Travel
From Author Wars - http://www.authorwars.com/books/titles/111213/the-theory-and-practice-of-time-travel/
Overview:
Editions/Publications:
- 1973. Vertex: The Magazine of Science Fiction, April 1973 (1973, Donald J. Pfeil, $1.50, 100 pages, Magazine)
Resources:
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