000 00292nam a2200109Ia 4500
008 220117s9999||||xx |||||||||||||| ||und||
040 _cIAB
082 _a155.412 PIA
100 _aPiaget,Jean
245 4 _aThe Child'S Conception Of Movement And Speed
260 _bRoutledge And Kegan Pual
_c1980
999 _c31651
_d31651