Polya, George, <br/><br/>
Mathematical :  on understanding, learning and teaching problem solving : discovery / 
George Polya. 
 - 2 volúmenes :  ilustraciones. . 
<br/><br/><label>Subjects--Topical Terms: </label><br/>MATEMATICAS--HISTORIA.
<br/><br/><label>Dewey Class. No.: </label>510