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008 200130s9999||||xx |||||||||||||| ||und||
040 _aMAIN
041 _aEnglish
082 _a516.24
_bGUP
100 _aGupta, D R
245 0 _aPlane Trigonometry
260 _bS Chand & Company Ltd.
_aNewDelhi
300 _bpbb
650 _aTigonometry
700 _aSondhi,R K
942 _cBK
999 _c7341
_d7341