Cita APA (7a ed.)

Subrahmanyam, N. (1990). A Textbook of Optics (15th ed.). S. Chand & Company Ltd,.

Cita Chicago Style (17a ed.)

Subrahmanyam, N. A Textbook of Optics. 15th ed. New Delhi:: S. Chand & Company Ltd,, 1990.

Cita MLA (9a ed.)

Subrahmanyam, N. A Textbook of Optics. 15th ed. S. Chand & Company Ltd,, 1990.