A Textbook Of Information Technology. 
By R Sarvana Kumar. 
 - 1st. 
 - New Delhi.:  S. Chand.,  2008. 
 - viii, 280 p.:  ill.;  20 cm. 
<br/><br/><label>ISBN: </label>81-219-2218-6 
<br/><br/><label>Subjects--Index Terms: </label>Computer Science. Information Technology. 
<br/><br/><label>Dewey Class. No.: </label>004