Understanding Well-Being in the Oldest Old  [electronic resource]. / 
Edited by Leonard W. Poon, Jiska Cohen-Mansfield. 
 - Cambridge :  The University Press,  2011 
 - 1 online resource (408 p.) 
<br/><br/>Includes bibliographic references and index 
<br/><br/><label>ISBN: </label>9780511920974 (ebook) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Older people--Psychology