Polya. G <br/><br/>
A New aspect of mathematical Effect 

 - USA:  Princeton university Press princeton,  1988. 
<br/><br/><label>ISBN: </label>9780691023564 
<br/><br/><label>Subjects--Topical Terms: </label><br/>A New aspect of mathematical Effect
<br/><br/><label>Dewey Class. No.: </label>510.7  / POL