Courant, Richard <br/><br/>
What is mathematics? an elementry approach to ideas and methods 
Richard Courant 
 - 2nd ed. 
 - New York  Oxford University Press  1986 
 - xxv, 566 
<br/><br/><label>ISBN: </label>0195105192 
<br/><br/><label>Dewey Class. No.: </label>510 C833W-2