Courant, Richard,  1888-1972. <br/><br/>
What is mathematics? :  an elementary approach to ideas and methods / 
by Richard Courant, Herbert Robbins and rev. by Lan Stewart 
 - 2nd ed.  
 - New York :  Oxford University Press,  1996 [Reprinted 2012]. 
 - 566 p. :  ill. ;  23 cm. 
<br/><br/>Includes bibliographical references (p. 549-558) and index. 
<br/><br/><label>ISBN: </label>9780195105193 (hbk.) 0195105192 (alk. paper) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics.
<br/><br/><label>Dewey Class. No.: </label>510  / COW 2012