000 00290nam a2200133Ia 4500
008 161121s9999 xx 000 0 und d
100 _aNarayanan, S.
245 0 _aSupplement to Trigonometry
260 _cViswanathan. M
365 _b0
650 _aNIL
652 _a#N/A
942 _cBK
999 _c38409
_d38409