Bhatt, R K <br/><br/>
Information System: handbook for beginners in information science and information technology 
by R K Bhatt 
 - New Delhi  Pragati Publications  2009 
<br/><br/><label>ISBN: </label>9788173071276 
<br/><br/><label>Dewey Class. No.: </label>025.50 BHA/INF