Edwards, Chris. <br/><br/>
(The) essence of information systems / 
Chris Edwards, John Ward and Andy Bytheway. 
 - 2nd ed. 
 -  Prentice Hall  1991. 
<br/><br/>6448 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Business - Data processing.<br/>Business - Communication systems.<br/>Management information systems.
<br/><br/><label>LC Class. No.: </label>HF5548.2  / Edw.