Medawar, Peter Brian,  Sir <br/><br/>
The hope of progress / 
P. B. Medawar. 
 - London :  Methuen,  1972. 
 - 133 p. ;  23 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science
<br/><br/><label>Dewey Class. No.: </label>508.1