Research relating to children. Bulletin No. 3 - 14, 19 
Clearinghouse for Research in Child Life 
 - Washington, USA  U.S. Government Printing Office  
 - iii,124p. 
<br/><br/><label>Source: </label>Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Child Psychology