000 00337nam a2200145Ia 4500
008 130629s9999 xx 000 0 und d
082 _a516.24 CHA-T
100 _aChatterji, P N
245 _aTrigonometry
250 _a9
260 _bRajhans Prakashan Mandir
_c1979
_aMeerut
300 _a250
650 _aMathematics
942 _cBK
999 _c18030
_d18030