SF Calendar (If, May 1968)

From Author Wars - https://authorwars.com/books/sf-calendar-if-may-1968-900406.html

Overview:

Title: SF Calendar (If, May 1968)
Author: uncredited
Year: 1968
Type: Essays

Editions/Publications:

Unknown. If, May 1968 (Unknown, uncredited, Galaxy Publishing Corporation, $0.60, 164 pages, digest, MAGAZINE)