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020 _a81-219-1441-8
082 _a535.8
082 _bSHA/O
100 _aM.
_bSHANTHA
245 0 _aOPTICS AND SPECTROSCOPY
260 _aNEW DELHI
260 _bS.CHAND&COMPANY LTD
260 _c1997
999 _c9828
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