Hughes, George Edward <br/><br/>
A new introduction to modal logic 

 - London :  Routledge,  ©1996. 
 - x, 421 p. :  ill. ;  23 cm (Paperback) 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9780415126007 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Modality (Logic)
<br/><br/><label>Dewey Class. No.: </label>160  / HUG / B