000 00252nam a2200109Ia 4500
008 200906s9999 xx 000 0 und d
082 _a517.1 N218
100 _aNARAYANAN.S
245 0 _aCALCULUS
260 _bS.VISHWANATHAN, MADRAS
_c1968
942 _cBK
999 _c60952
_d60952