SF Greats, Spring 1971

From Author Wars - https://authorwars.com/books/sf-greats-spring-1971-1395353.html

Overview:

Title: SF Greats, Spring 1971
Author: George Barr
Year: 1971
Type: Cover Art

Editions/Publications:

Unknown. SF Greats, Spring 1971 (Unknown, George Barr, Ultimate Publishing Co., Inc., $0.60, 132 pages, digest, MAGAZINE)