TY - BOOK AU - Subrahmaṇyaṃ; TI - A Textbook of Optics SN - 9788121904674 U1 - 535 BRI PY - 1979///; 1987 CY - New Delhi PB - : Chand KW - A Textbook of Optics KW - Photometry KW - Interference KW - N Subrahmanyam,Brij Lal KW - Physics ER -