Online searching  an introduction 
W. M. Henry ... [et al.] 
 - London  Boston  Butterworths  1980 
 - 209 p.  ill.  24 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Online bibliographic searching
<br/><br/><label>Dewey Class. No.: </label>025  / .04