G. E. HUGHES <br/><br/>
AN INTODUCTION TO MODAL LOGIC 

 - 1ST 
 - LONDON  METHUEN  1982 
 - XI,386P 
<br/><br/><label>ISBN: </label>041629460X 
<br/><br/><label>Subjects--Topical Terms: </label><br/><br/>
<br/><br/><label>Dewey Class. No.: </label>160/HUG/INT