Jessup, Leonard M. <br/><br/>
Information systems foundations / 
Leonard M. Jessup , Joseph S. Valacich. 
 - Indianapolis :  Macmillan Publishing Company,  1999. 
 - 1 v. (varing pages). 
<br/><br/><label>ISBN: </label>1576764156 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Information systems