Courant Richard <br/><br/>
What is mathematics 

 -  1946 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>61117 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics
<br/><br/><label>Dewey Class. No.: </label>B, H6