000 00395nam a2200169Ia 4500
003 0STCL
008 150530s9999 xx 000 0 und d
040 _aSTCL
_cSTCL
100 _aNarayanan, S.; Manicavachagom, P.T.K.
245 _aTrigonometry
250 _aFourth
260 _bS. Viswanathan
_c1970
546 _aEnglish
942 _2ddc
_cBK
999 _c23941
_d23941
005 20220125170006.0