000			00315nam a22001217a 4500
999			_c1052 _d1052
020			_a971-42-0411-9
082			_aFil. 510 B230 C2003
100			_aBarcelon, Dolores G.
245			_aPlane trigonometry
260			_aPhilippines: _bTrinitas Publishing, Inc., _cC2003.
300			_avi, 288p. : ill. ; 25cm
942			_cBK