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

 - 2 
 - New Jersey  Princeton Uni Press  1957 
 - "xxi,253p. :ill. ;20cm." 
<br/><br/><label>ISBN: </label>0691023565 
<br/><br/><label>Subjects--Topical Terms: </label><br/>"Mathematics--Problems, exercises, etc."<br/>Mathematics--Study and teaching