Polya, G. <br/><br/>
How to solve it :  A new aspect of mathematical method / 
G. Polya. 
 - 2nd ed. 
 - Princeton, NJ :  Princeton Univ. Press ,  1973. 
 - XXI, 253 p. 
<br/><br/><label>ISBN: </label>0-691-02356-5 0-691-08097-6 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics