000 00591nam a2200217 a 4500
005 20210219152937.0
008 991125n 000 0 u
035 _aUPN01000068013
100 _aLadd, Gary W.
222 _aearly education and development
245 _aComentary : play, parenting, and peer partners
300 _a401-406
362 _a3, No. 4, 1992
505 _aMarzo 1993
653 0 _aDESARROLLO INFANTIL
653 0 _aDESARROLLO SOCIAL
653 0 _aNI\197OS JOVENES
653 0 _aRELACION ENTRE COMPA\197EROS
904 _aAC
_b005824
905 _aArticulo
999 _c64317
_d64317