Nilsson, Nils J <br/><br/>
Principles of artificial intelligence 

 - New jersey  Addison-Wesley  1990 
 - 496p. 
<br/><br/><label>ISBN: </label>8185198292 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Artificial Intelligence<br/>Production system<br/>Structured object representation