Walford, Roy L. <br/><br/>
Maximum life span / 
Roy L. Walford. 
 - New York :  Norton,  1983. 
 - xiv, 256 p. :  ill. ;  22 cm. 
<br/><br/>Includes bibliogr. references and index. 
<br/><br/><label>ISBN: </label>0393016498 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Longevity.<br/>Aging.<br/>Life span, Productive.