Polya, G. <br/><br/>
How to solve it  a new aspect of mathematical method 

 - USA  Princeton University Press  1973 
 - xxi, 253p.  21cm. 
<br/><br/><label>ISBN: </label>0691080976 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics <br/>problem solving 
<br/><br/><label>Dewey Class. No.: </label>510.7  / POL