Information Technology. 
By S L Sah. 
 - 1st. 
 - New Delhi.:  Gyan Publishing House.,999. 
 - 348 p.:  ill.;6 cm. 
<br/><br/><label>ISBN: </label>81-212-0601-4 
<br/><br/><label>Subjects--Index Terms: </label>Computer Science. Information Technology. 
<br/><br/><label>Dewey Class. No.: </label>004