Hayflick, Leonard  <br/><br/>
How and why age 
/ Leonard Hayflick, with a fore word by Robert N. Butler  
 - New York  : Ballantine Books  , 1994 
 - xxii, 377p.  : ill.  ; 24 cm.  
<br/><br/><label>ISBN: </label>0345339185 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Vejes--- Obras de divulgación<br/>Vejez--- Aspectos Fisiológicos 
<br/><br/><label>LC Class. No.: </label>QP 86   / H39 1994