000 00284nam a2200109Ia 4500
008 190829s9999||||xx |||||||||||||| ||und||
100 _aBalakrishnan P V
245 0 _aIntermediate Trigonometry
260 _bThe Mangalodayam Press
_aThrissur
_c1932
650 _aTrigonometry
942 _cBK
999 _c7459
_d7459