Courant, R & Robbins, H <br/><br/>
What is mathematics?  an elementary approach to ideas & methods 
R. Courant & H. Robbins 
 - 2 
 - New York  Oxford University Press  1966 
 - 566 
<br/><br/><label>ISBN: </label>9780195687101 
<br/><br/><label>Dewey Class. No.: </label>28  / COUR