Obrien, James A. <br/><br/>
Introduction to information systems. 

 - 12 
 - New Delhi  Tata McGraw Hill Publishing Company Ltd  2009 
 - xxx,452,R8,I22 
<br/><br/><label>ISBN: </label>9780070589711 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Information Theory(003.54)
<br/><br/><label>Dewey Class. No.: </label>003.54 OBRJ