Polya, George  1887-1985 <br/><br/>
Mathematical discovery :  On understanding, learning and teaching problem solving / 
By George Polya. 
 - New York :  John Wiley & Sons. 
 - v. 
<br/><br/>Includes bibliogr. references 
<br/><br/>Vol. 1(1962; xv, 216 p. : ill. ) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--Problems, exercises, etc<br/>Problem solving