Ackermann Robert <br/><br/>
Introduction to many valued logics 

 - London  Routledge and Kegan Paul U. K.    1967 
 - Monographs in modern logic ed by G B Keene .
<br/><br/><label>Standard No.: </label>65,120 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>R14, K72-;1