The Duende History of the Shadow Magazine

From Author Wars - https://authorwars.com/books/the-duende-history-of-the-shadow-magazine-886304.html

Overview:

Title: The Duende History of the Shadow Magazine
Author: Richard E. Geis
Year: 1980
Type: Reviews

Editions/Publications:

Unknown. Science Fiction Review, August 1980 (Unknown, Richard E. Geis, Richard E. Geis, $1.75, 64 pages, quarto, FANZINE)
Unknown. Science Fiction Review, August 1980 (Unknown, Will Murray, Richard E. Geis, $1.75, 64 pages, quarto, FANZINE)