Polya, George,  1887-1985. <br/><br/>
Mathematics and plausible reasoning / 
Polya G. 
 - Princeton, N. J. :  Princeton University Press,  1954. 
 - v. :  ill. ;  25 cm. 
<br/><br/>v.1. - Induction and analogy in mathematics v.II -  Patterns of plausible inference 
<br/><br/><label>ISBN: </label>0691080054 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--Philosophy.<br/>Logic, Symbolic and mathematical.