Schaie, Klaus Warner,  1928- <br/><br/>
Adult development and aging / 
K. Warner Schaie, Sherry L. Willis. 
 - 4th ed. 
 - New York :  HarperCollins College Publishers,  1996. 
 - xviii, 616 p. :  ill. ;  25 cm. 
<br/><br/>Includes bibliogr. references (p. 519-590) and indexes. 
<br/><br/><label>ISBN: </label>0673994023 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Adulthood.<br/>Life cycle, Human.<br/>Adulthood--Psychological aspects.<br/>Aging--Psychological aspects.