Patterson, Dan W., <br/><br/>
Introduction to Artificial Intelligence and Expert systems  Textual Documents 
By Dan W. Patterson 
 - 2nd ed. 
 - Delhi  Pearson Education  2015 
 - pg448:  21cm. 
<br/><br/><label>ISBN: </label>978-93-325-5194-7 
<br/><br/><label>Subjects--Index Terms: </label>Computer science Overview of Artificial Intelligence G- Computer science 
<br/><br/><label>Dewey Class. No.: </label>006.3