00291nam a2200097Ia 4500008004100000020001500041100003000056245004200086260004800128300001700176180205s9999    xx            000 0 und d  a9710862005  aBatacan, Ma. Carmelita A.  aPlane trigonometry :b(text/workbook)  aMandaluyong CitybNational book storec2001  av, 265 pages