The project Zero classroom :  views on understanding / 
edited by Lois Hetland and Shirley Veenema. 
 - Cambridge, United States :  Harvard University Graduate School of Education,  1999. 
 - 196p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>EDUCACION TEMPRANA DE NIŅOS<br/>EDUCACION PREESCOLAR
<br/><br/><label>Dewey Class. No.: </label>372.21  / P963v; 1999