000 00343nam a2200145Ia 4500
008 220926s9999 xx 000 0 und d
100 _aK.Manicavachagom Pillai
245 0 _aTrigonometry
250 _a2nd RP
260 _aChennai
260 _bVishwanathan Printers Publication
260 _c1994
650 _aTrigonometry
942 _cBK
999 _c18077
_d18077