Medawar, P. B.  1915- <br/><br/>
The hope of progress / 
Peter Brian Medawar 
 - London :  Methuen,  c1972 
 - 133 p. ;  23 cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label> PND 2.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science
<br/><br/><label>Dewey Class. No.: </label>501