Guide to DIALOG searching / 
DIALOG Information Services,inc. 
 - Palo Alto, Calif. :  DIALOG information Services,  1979 
 - 3v. (loose leaf) 
<br/><br/><label>ISBN: </label>0933414048 
<br/><br/><label>Subjects--Topical Terms: </label><br/>DIALOG (Information retrieval system)<br/>Online bibliographic searching--Handbooks,manuals,etc