000 00265nam a2200109Ia 4500
008 190829s9999||||xx |||||||||||||| ||und||
100 _aAlukal, Varkey
245 0 _aAdvanced Trigonometry
260 _bViswvasthan
_aMadras
_c1953
650 _aTrigonometry
942 _cBK
999 _c9357
_d9357