Subrahmanyam , N A textbook of sound : For Honours, Postgraduate and M. Phil Students of All Indian Universities / by N Subrahmanyam - New Delhi : Vikas Pub., 1992 - 273 p. : ill. ; 22 cm. Includes index. ISBN: 706965647 Subjects--Topical Terms: Physics Dewey Class. No.: 534 / SUB 1992.