Undersea City

From Author Wars - https://authorwars.com/publications/undersea-city-629278.html

Overview:

Title: Undersea City
Author: Frederik Pohl, Jack Williamson
Year: 1971
ISBN-10: 0345022092
Publisher: Ballantine Books
Price: C$0.75
Pages: 151
Binding: Paperback
Type: Novel
Title Reference: Undersea City
Notes:
• "First printing: April, 1971"; no number line • "Cover art by Gino D'Achille" on copyright page, the wraparound artwork is also signed [mirror-image] • Cover printed in the US, book in Canada