Swanson, E. Burton. <br/><br/>
Maintaining information systems in organizations / 
E. Burton Swanson and Cynthia Mathis Beath. 
 - Chichester :  John Wiley & Sons,  1989. 
 - 255 p. :  ill. ;  21 cm. 
<br/><br/><label>ISBN: </label>0471938459  RM119.40 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Software maintenance--Management.<br/>Data base management.