Computer based information retrieval systems / 
edited by Bernard Houghton. 
 - London :  Bingley,  1968. 
 - 136 p. :  ill. ;  23 cm. 
<br/><br/><label>ISBN: </label>0851570593 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Information storage and retrieval systems.
<br/><br/><label>Dewey Class. No.: </label>025.04  / COM 1968