Bova, Ben <br/><br/>
Immortality :  how science is extending your life span - and changing the world / 
Ben Bova. 
 - New York :  Avon Books,  2000. 
 - xv, 283 p. 
<br/><br/> Includes appendices, references, and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Longevity--Popular works