James A. O'Brien <br/><br/>
Introduction to information systems 

 - 7th ed. 
 -  IRWIN  1994 
 - 483 p 
<br/><br/><label>ISBN: </label>0- 256- 15619- 0 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Business- data processing
<br/><br/><label>LC Class. No.: </label>HF 5548.2 .O232/