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020 _a9788131249154
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040 _aSOETPKD
041 _aENGLISH
082 _a617.7
_bKHU
100 _aKHURANA, A. K.
245 0 _aTHEORY AND PRACTICE OF OPTICS AND REFRACTION
250 _a4TH
260 _aNEW DELHI
_bELSEVIER
_c2017
300 _a0
500 _a20663
942 _cBK
999 _c96096
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