Originally published: New York : Ace Books, 1971 ; London : Sidgwick and Jackson, 1972.
OBNB doesn't sell books, but you may be able to find a copy at one of these websites:
The battle of forever by A. E. Van Vogt. ISBN 0450045978. Published by New English Library in 1980. Publication and catalogue information, links to buy online and reader comments.
