They call him "Swinger." He's CIA ace Joaquin Hawks and he's looking for treasure-- sunken atomic treasure-- a priceless treasure to the U.S.... and the Communists.
Used availability for Bill S Ballinger's The Spy in the Java Sea
September 1966 : USA Paperback
Title: Spy in the Java Sea
Author(s): Bill S Ballinger
ISBN: 0-451-02981-X / 978-0-451-02981-2 (USA edition)