Fries, James F. <br/><br/>
Vitality and aging :  implications of the rectangular curve / 
James F. Fries, Lawrence M. Crapo. 
 - San Francisco :  W.H. Freeman,  c1981. 
 - xii, 172 p. :  ill. ;  24 cm. 
<br/><br/> Includes index. 
<br/><br/>Bibliography: p. 153-165. 
<br/><br/><label>ISBN: </label>071671308X 0716713098 (pbk.) 
<br/><br/><label>LCCN: </label>81004566  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Aging.<br/>Longevity.<br/>Vitality.
<br/><br/><label>LC Class. No.: </label>QP86  / .F73 
<br/><br/><label>Dewey Class. No.: </label>612/.67