Comfort, Alexander,    1920- <br/><br/>
The biology of senescence /  
A. Comfort. 
 - London :    Routledge & Paul ,    1956. 
 - 257 p. :    ill. ;    23 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Old age.
<br/><br/><label>National Library of Medicine Call No.: </label>WT 104   /  C734b