Roysdon Christine Ed <br/><br/>
Expert systems in reference services 

 - New York  Haworth         1989 
 - 238p.  cm. 
<br/><br/><label>Standard No.: </label>31130 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>LIBRARY SCIENCE
<br/><br/><label>Dewey Class. No.: </label>2:70bD65,8(B), M9