Hogger, Christopher John <br/><br/>
Essentials of Logic programming  

 - Nairobi  Claredon Press  1990 
 - 299p. 
<br/><br/><label>ISBN: </label>0-19-85832-4 
<br/><br/><label>LC Class. No.: </label>QA 76.63  / H63 1990