Houghton, Bernard Convey, John <br/><br/>
On-line information retrieval systems  an introductory manual to principles and practice 

 -  1986 
<br/><br/><label>Subjects--Uniform Titles: </label><br/>Information Storage & Retrieval systems
<br/><br/><label>Dewey Class. No.: </label>029.75  / H84O