Psychological development : A life-span approach / 
Paul Henry Mussen ... et al. 
 - New York :  Harper & Row,  1979. 
 - ix, 502 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliogr. references and index. 
<br/><br/><label>ISBN: </label>0060446927 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Developmental psychology.