"Davis, G." <br/><br/>
Management information systems/ 
G.Davis 
 - New York:  "Mcgraw-hill,"  1985 
 - 689p. 
<br/><br/><label>ISBN: </label>0-07-015828-2 
<br/><br/><label>Dewey Class. No.: </label>5  / Dav