Harter, Stephen P <br/><br/>
Online information retrieval: concepts, principles, and techniques 

 - Orlando:  Academic Press  1986 
 - xi, 259p. 
<br/><br/><label>ISBN: </label>0123284554 
<br/><br/><label>Subjects--Topical Terms: </label><br/>INFORMATION RETRIEVAL<br/>Online data processing
<br/><br/><label>LC Class. No.: </label>QA 76.55 Har