APA (7th ed.) Citation

Mathur, B. K. (1972). Principles of Optics (3rd ed.). Gopal Printing Press.

Chicago Style (17th ed.) Citation

Mathur, B. K. Principles of Optics. 3rd ed. Kanpur: Gopal Printing Press, 1972.

MLA (9th ed.) Citation

Mathur, B. K. Principles of Optics. 3rd ed. Gopal Printing Press, 1972.