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SUBRAHMANYAM N, . (2010). A TEXT BOOK OF OPTICS. : S.CHAND S.& CO.
SUBRAHMANYAM N, . 2010. A TEXT BOOK OF OPTICS. : S.CHAND S.& CO.
SUBRAHMANYAM N, . A TEXT BOOK OF OPTICS. : S.CHAND S.& CO. 2010.