Polya, George,  1887-1985. <br/><br/>
Mathematical discovery :  on understanding, learning, and teaching problem solving / 
spine title :  Mathematical discovery. 
George Polya. 
 - New York :  Ishi Press,  2009. 
 - 2 v. :  ill. ;  23 cm. 
<br/><br/> Previous published by John Wiley & sons, : New York : Wiley, 1961. 
<br/><br/>Includes bibliographical references and indexes. 
<br/><br/><label>ISBN: </label>4871878317 (v. 1 : pbk.) 9784871878319 (v. 1 : pbk.)  RM119.52 4871878325 (v. 2 : pbk.) 9784871878326 (v. 2 : pbk.)  RM119.52 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--Problems, exercises, etc.<br/>Problem solving.