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082 _a620
100 _aMATHUR, D. S.
245 _aMECHANICS
250 _aIST
260 _bS.CHAND AND CO.
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_c2015
300 _aNA
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500 _a35-36
650 _aMANAGEMENT
650 _aMECHANICS
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