Courant, Richard. <br/><br/>
What is mathematics :   elementary approach to ideas and methods / 
By Richard Courant and Herbert Robbins. 
 - 2nd ed.  
 - New York :  Oxford University Press ,  1996. 
 - 566p. ;  PB  23.3 cm 
<br/><br/><label>ISBN: </label>195105192 
<br/><br/><label>Subjects--Topical Terms: </label><br/>The number system of mathematics<br/>Geometrical constructions <br/>Topology
<br/><br/><label>Dewey Class. No.: </label>511.2   / COUR