The Worm Ouroboros

From Author Wars - https://authorwars.com/publications/the-worm-ouroboros-430381.html

Overview:

Title: The Worm Ouroboros
Author: E. R. Eddison
Year: 1970
ISBN-10: 0345020014
Publisher: Ballantine Books
Price: £0.40
Pages: xxii+520
Binding: Paperback
Type: Novel
Title Reference: The Worm Ouroboros
Notes:
- "Fifth Printing: August, 1970"; no number line; printed in Canada
- Four other (US?) and two other specific Canadian printings are also noted on copyright page
- SBN of 345-02001-4 on back cover
- Other prices on back cover: Australia $1.25 New Zealand $1.25 South Africa $0.95
- Cover credit from artist's Wikipedia page. The Ballantine E.R. Eddison novels of 1967-69 are a uniform edition, and Remington signed Mistress of Mistresses as "B. Rem."