Thrice Upon a Time

From Author Wars - https://authorwars.com/publications/thrice-upon-a-time-231241.html

Overview:

Title: Thrice Upon a Time
Author: James P. Hogan
Year: 1980
ISBN-10: 0345275187
Publisher: Del Rey / Ballantine
Price: C$2.75
Pages: 311
Binding: Paperback
Type: Novel
Title Reference: Thrice Upon a Time
Notes:
- "First Edition: March 1980"
- Printing not stated, no number line
- "Cover art by Rowena Morrill" on copyright page, the artwork is also signed
- Cover printed in the US, book in Canada