Digital Library Systems 
V.S. Sethunath 
 - 1st 
 -  Crescent  2012 
 - 274 
<br/><br/><label>ISBN: </label>9788183422321 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Library
<br/><br/><label>Dewey Class. No.: </label>025.0427  / SET