APA Style

Lal, N, S, B. (2000 (approximate; v). A Textbook of Sound (2nd Edition (commonly used; please change if diffe). New Delhi, India: S. Chand & Company Ltd..

MLA Style

Lal, N., Subrahmanyam,, Brij. "A Textbook of Sound". 2nd Edition (commonly used; please change if diffe New Delhi, India: S. Chand & Company Ltd., 2000 (approximate; v. Text.