George Polya <br/><br/>
How to Solve It 

 - 1st 
 - Newdelhi  Penguin Books  2022 
 - 222 
<br/><br/><label>ISBN: </label>9780140124996 
<br/><br/><label>Subjects--Topical Terms: </label><br/>GENERAL
<br/><br/><label>Dewey Class. No.: </label>510.7  / GEO/H