Barwise, T P <br/><br/>
Online searching:   The impact on user charges of the of the extended use of online information services 

 - Paris:   International Council of Scientific Unions Abstracting Board,   1979 
 - viii, 75p. 
<br/><br/><label>ISBN: </label>9-29027-008-X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Report
<br/><br/><label>Universal Decimal Class. No.: </label>D 681.3.022:002(04)  / L9