Social development in childhood  day-care programs and research 
edited by Roger A. Webb 
 - Baltimore  The Johns Hopkins University Press  1977 
 - xxi, 196 p. ; 21 cm. 
<br/><br/> Papers from the 4th Hyman Blumberg Symposium on Research in Early Childhood Education, held Mar. 7-9, 1974. 
<br/><br/>Includes bibliographies and index. 
<br/><br/><label>ISBN: </label>0801819466 
<br/><br/><label>LCCN: </label>77-004778 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education, Preschool--Congresses<br/>Interaction analysis in education--Congresses