Cita APA (7th ed.)
Subramanyam, N., & Lal, B. (1993). A Textbook of optics (22nd ed.). S. Chand.
Cita Chicago (17th ed.)
Subramanyam, N., i Brij Lal. A Textbook of Optics. 22nd ed. New Delhi: S. Chand, 1993.
Cita MLA (9th ed.)
Subramanyam, N., i Brij Lal. A Textbook of Optics. 22nd ed. S. Chand, 1993.
Atenció: Aquestes cites poden no estar 100% correctes.