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SUBRAHMANYAM (N), BRIJ LAL, . (1981). Text book of optics. Ed 11. N D: S. Chand & Co. Ltd.
SUBRAHMANYAM (N), BRIJ LAL, . 1981. Text book of optics. Ed 11. N D: S. Chand & Co. Ltd.
SUBRAHMANYAM (N), BRIJ LAL, . Text book of optics. Ed 11. N D: S. Chand & Co. Ltd. 1981.