Ladd, Gary W <br/><br/>
Children's peer relations and social competence : a century of progress 
Gary W. Ladd 
 - New Haven  Yale University Press  2005 
 - x, 436 p. ; 25 cm 
<br/><br/> Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>9780300106435 
<br/><br/><label>ISSN: </label>2005002379 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Friendship in children<br/>Interpersonal relations in children
<br/><br/><label>Dewey Class. No.: </label>155.418 LAD