Weyl, Hermann. <br/><br/>
Philosophy of mathematics and natural science / 
by Hermann Weyl ; based on translation by Olaf Helmer. 
 - Rev. and augmented English ed. 
 - Princeton :  Princeton University Press,  1949. 
 - ix, 311 p. : ill. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--Philosophy.<br/>Science--Philosophy.