000 00415cam a2200181ua 4500
020 _c2.25
041 _aeng
_h
082 _a516.24
_bNAR/TR
100 _aNarayanan, S .
245 _aTrigonometry /
_cS.Narayanan.
_hTextual Documents
250 _a3 /
_b.
260 _aMadras :
_bS.Narayanan ,
_c1964.
300 _a164 ; .
365 _a2.25
504 _a
942 _cBK
999 _c257058
_d257058