The care and education of America's young children :  obstacles and opportunities / 
ed. Sharon Lynn Kagan. 
 - Chicago, Ill. :  National Society for the Study ofEducation,  1991. 
 - 273 p. 
<br/><br/> Parte 1 de: Ninetieth yearbook of the National Society forthe Study of Education 
<br/><br/><label>ISBN: </label>0226601542 
<br/><br/><label>Encabezamiento--Tema: </label><br/>Niņo, Estudio del<br/>NIŅOS ---DIRECCION