Aging and working capacity :  report of a WHO study group. 

 - Geneva :  WHO,  1993. 
 - vi, 49 p. ;  24 cm. 
 - Technical report series (World Health Organization) ;  835 .
<br/><br/> Open Access. 
<br/><br/><label>ISBN: </label>924120835X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Aging.<br/>Geriatrics.