000 00246nam a2200109Ia 4500
008 190703s9999 xx 000 0 und d
082 _a517.1 N218
100 _aNARAYAN,S
245 0 _aCALCULUS
260 _aMADRAS
_bS.VISWANATHAN
942 _cBB
_2DDC
999 _c5030
_d5030