Birren, James E, Ed., at al. <br/><br/>
Journal of Gerontology, Vol.27 (1-4) 

 -  Gerontological Society,  1972 
 - 588 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Journal of Gerontology
<br/><br/><label>Universal Decimal Class. No.: </label>JG-27  / (1-4)