Mussen, Paul Henry. <br/><br/>
Handbook of research methods in child development 
edited by Paul H. Mussen. 
 - New York  Wiley  1960. 
 - x, 1061 p. 
<br/><br/> Includes index. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Child development--Methodology.<br/>Psychological research.