000			00419 a2200157 4500
999			_c35758 _d35758
003			WUSLLib
008			200914b ||||| |||| 00| 0 eng d
020			_a0521388449
041			_aEnglish
082			_a510 _bPRO
245			_aProblem solving: _bthe school mathematics project
260			_aCambridge: _bCambridge University Press, _c1991
300			_a106p.; _c25cm.
650			_aMathematics _917204
942			_cL _2ddc