Kumar, P.S.G. <br/><br/>
Information Sources and Services Theory and Practice 
/ by  P.S.G. Kumar 
 - 1st ed. 
 - Delhi:  B.R. Publishing Corporation,  2004 
 - vi,390p. 
<br/><br/><label>ISBN: </label>9788176464130 
<br/><br/><label>Dewey Class. No.: </label>025.52  / KUM/I