The marketing of information services :  proceedings of a seminar held by the Aslib Information Industry Group on 11 May 1977 / 
edited by Margaret Raffin 
 - London :  Aslib,  c1978 
 - [3], 59 p. ;  30 cm. 
<br/><br/><label>ISBN: </label>0851421091 :  PND 5.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Information services--Marketinges<br/>Information services industryes
<br/><br/><label>Dewey Class. No.: </label>658.8