Polya, G. <br/><br/>
Mathematics and plausible reasoning v. 2, patterns of plausible inference   

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 - Princeton, N.J.:  Princeton University Press,  1968. 
 - 225:  25 cm. 
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<br/><br/><label>ISBN: </label>9780691025100 
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<br/><br/><label>Subjects--Meeting Names: </label><br/>  
<br/><br/><label>Subjects--Index Terms: </label>Mathematics 
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<br/><br/><label>Dewey Class. No.: </label>510.1  POL