000			00481nam a2200181Ia 4500
003			NIELib
008			211019s9999||||xx |||||||||||||| ||und||
020			_a071009213X
082			_a155.4 _bESS
245			_aThe essential piaget
260			_bRoutledge, _c1977. _aLondon:
300			_axlii,881p.; _c23cm
650			_aDevelopmental Psychology
650			_aChild Psychology
700			_aGruber, Howard _926130 _eEd.
700			_aVoneche, Jacques _91184 _eEd.
942			_2ddc _cSR
999			_c34407 _d34407