Clocksin, WF <br/><br/>
Programming in prolog 

 - 3rd ed. 
 - Delhi: Narosa.  1989 
 - viii,281p.  22 cm. 
<br/><br/><label>ISBN: </label>8185198152 
<br/><br/><label>Dewey Class. No.: </label>001.535,  / CLO