Lawlor,Steven C. <br/><br/>
Computer information systems / 
Steven C. Lawlor. 
 - 2nd ed. 
 - Fort Worth :  Dryden Press,  1992. 
 - xii, 483 p. :  col. ill. ;  26 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0155126792 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Information technology.<br/>Computers.<br/>Computer software.