000			00463nam a2200157Ia 4500
003			NIELib
008			211019s9999||||xx |||||||||||||| ||und||
020			_a0-521-40944-6
082			_a510.7 _bHOL
100			_aHolding, John _98349
245			_aThe Investigations Book : A resource book for teachers of mathematics
260			_bCambridge University Press, _c1991. _aNew York :
300			_avi,186p.; _bill.; _c25cm
650			_aMathematics
942			_2ddc _cLM
999			_c79279 _d79279