Cox, John <br/><br/>
Keyguide to information sources in online and CD-ROM database searching / 
John Cox. 
 - London :  Mansell Pub.,  1991. 
 - xxiv, 247 p. 
<br/><br/><label>ISBN: </label>0720120934 :  $72.00 
<br/><br/><label>LCCN: </label>91065070     
<br/><br/><label>Subjects--Topical Terms: </label><br/>Information retrieval--Bibliography.<br/>Database searching--Bibliography.<br/>Online bibliographic searching--Bibliography.