Hughess , G,.E  . <br/><br/>
An introduction to Model logic /  
G,E Hughess and M,J Cresswell. 
 - London  :   Methuen  ,   1968. 
 - xiv,388 p :   ill.,figs. ;   24 cm .  
<br/><br/>Includes bibliography and index 
<br/><br/><label>ISBN: </label>041629460x  UKP8.95 
<br/><br/><label>Subjects--Index Terms: </label>MODEL LOGIC  
<br/><br/><label>Dewey Class. No.: </label>160  / SUG/M