Rescher Nicholas <br/><br/>
Many valued logic 

 - New York   Mc Graw - Hill Book Company  
 - ix, 359p.  cm. 
<br/><br/><label>Standard No.: </label>1794 
<br/><br/><label>Source: </label> Textbook 
<br/><br/><label>Dewey Class. No.: </label>R1, K93