Across a Billion Years

From Author Wars - https://authorwars.com/publications/across-a-billion-years-123221.html

Overview:

Title: Across a Billion Years
Author: Robert Silverberg
Year: 1979
ISBN-10: 0417031505
Publisher: Magnum Books / Methuen Paperbacks
Price: £0.95
Pages: 249
Binding: Paperback
Type: Novel
Title Reference: Across a Billion Years
Notes:
• "Magnum edition published 1979"
• Month from amazon.uk
• Printing not stated, no number line
• "Cover illustration: Peter Elson" on back cover, no visible signature/initials on the wraparound artwork
• Australia $3.50, New Zealand $2.95