Singhal, Er Alok. <br/><br/>
Information technology / 
By Er Alok Singhal. 
 - 1st ed. 
 - New Delhi :  Excel Books ,  2002. 
 - viii,390 p.;  24 cm. 
<br/><br/><label>ISBN: </label>817446283X 
<br/><br/><label>Subjects--Topical Terms: </label>
<br/><br/><label>Dewey Class. No.: </label>003.55   / SINA