Hughes G E <br/><br/>
A new introduction to modal logic/ 
by Hughes G E 
 - London:  Routledge,  1996. 
 - 421p. 
<br/><br/><label>ISBN: </label>9780415126007 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Modal Logic<br/>Logic Philosophy<br/>Philosophy
<br/><br/><label>Dewey Class. No.: </label>160  / HUG/N