Superhorror

From Author Wars - https://authorwars.com/books/superhorror-415241.html

Overview:

Title: Superhorror
Author: Don Grant (artist)
Year: 1976
Type: Cover Art

Editions/Publications:

Unknown. Superhorror (Unknown, Don Grant (artist), St. Martin's Press, ISBN-10: 0312776128, $7.95, 187 pages, Hardcover, Anthology)
Unknown. Superhorror (Unknown, Don Grant (artist), W. H. Allen, ISBN-10: 0491018762, £3.50, 187 pages, Hardcover, Anthology)