000 00296nam a2200121 4500
082 _a370
_bPIA.J
084 _2Colon Classification
100 _aPiaget, Jean
245 _aJohn Amos Comenius education /
_cby Jean Piaget
260 _bTeacher college,
_c1960.
300 _a196p. :
942 _cBK
999 _c684857
_d684857