Παραπομπή APA

Subrahmanyam, N., & Brij Lal. (2006). textbook of optics (23rd rev. ed.). S. Chand & Co.

Παραπομπή Chicago Style

Subrahmanyam, N., και Brij Lal. Textbook of Optics. 23rd rev. ed. New Delhi: S. Chand & Co, 2006.

Παραπομπή MLA

Subrahmanyam, N., και Brij Lal. Textbook of Optics. 23rd rev. ed. S. Chand & Co, 2006.