Hemmings, Margaret. <br/><br/>
Downloading from commercial online databases :  a survey of recent developments in online information retrieval / 
Margaret Hemmings. 
 - [London :  British Library],  1985 
 - v, 78 p. 
 - British National Bibliography Research Fund report ;  21 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Online bibliographic searching