Seshagiri, N : salmona, j.(ed) <br/><br/>
Computer and Communication:value-added services 

 -  McGraw Hill Publishing: New Delhi  1991 
 - 332 p. 
<br/><br/><label>ISBN: </label>0000074603841 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Network:VAN:On-line database sevices
<br/><br/><label>Dewey Class. No.: </label>004.6  / C55