APA (7th ed.) Citation

Subrahmanyam, N., & Lal, . B. (1997). A Textbook Of Sound (2nd revised ed.). vikas publishing house pvt ltd.

Chicago Style (17th ed.) Citation

Subrahmanyam, N., and Brij Lal. A Textbook Of Sound. 2nd revised ed. New Delhi: vikas publishing house pvt ltd, 1997.

MLA (9th ed.) Citation

Subrahmanyam, N., and Brij Lal. A Textbook Of Sound. 2nd revised ed. vikas publishing house pvt ltd, 1997.