Subrahmanyam,N, & Lal, B. (1966). A text book of Optics: For B.Sc(pass, honours and subsidiery), engineering students of Indian Universities and IAS examinations\. S.Chand & Company.
Lua i Stíl Chicago (17ú heag.)Subrahmanyam,N, agus Brij Lal. A Text Book of Optics: For B.Sc(pass, Honours and Subsidiery), Engineering Students of Indian Universities and IAS Examinations\. New Delhi: S.Chand & Company, 1966.
Lua MLA (8ú heag.)Subrahmanyam,N, agus Brij Lal. A Text Book of Optics: For B.Sc(pass, Honours and Subsidiery), Engineering Students of Indian Universities and IAS Examinations\. S.Chand & Company, 1966.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.