Dworetzky, John. <br/><br/>
Human development :  a lifespan approach / 
John P. Dworetzky and Nancy J. Davis. 
 - St. Paul :  West,  c1989. 
 - xxx, 602 p. :  ill. (some col.) ;  26 cm. 
<br/><br/> Includes index. 
<br/><br/>Includes bibliographical references p. 549-582. 
<br/><br/><label>ISBN: </label>0314624813 (hbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Developmental psychology.