The World Wreckers

From Author Wars - https://authorwars.com/publications/the-world-wreckers-224237.html

Overview:

Title: The World Wreckers
Author: Marion Zimmer Bradley
Year: 1977
ISBN-10: 0441911714
Publisher: Ace Books
Price: $1.50
Pages: 215
Binding: Paperback
Type: Novel
Title Reference: The World Wreckers
Notes:
© 1971, no other date, printing or number line Publication date from Locus #202 (July 1977) The artist is not credited, no visible signature. The cover artwork also was used here and credited to Michael Whelan.