Bernal, J. D. <br/><br/>
The freedom of necessity / 
J.D. Bernal. 
 - London :  Routledge & Kegan Paul,  1949. 
 - xi, 437 p. ; 
<br/><br/><label>ISBN: </label>ISBNSc1118 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science
<br/><br/><label>Dewey Class. No.: </label>501  / Fr