Cox, Albert W. Sonar and underwater sound / Albert W. Cox. - Lexington, Mass. : Lexington Books, [1974] - xx, 144 p. : ill. ; 24 cm. Includes index. ISBN: 0669959359 LCCN: 74015547 Subjects--Topical Terms: Sonar.Underwater acoustics.Anti-submarine warfare. LC Class. No.: VM480 / .C64 Dewey Class. No.: 623.7/3