O'Leary, Timothy J.,  1947- <br/><br/>
Computers and information systems / 
T.J.O'Leary, Brian K. Williams. 
 - 2nd ed. 
 - Redwood City, Calif. :  Benjamin/Cummings,  c1989 
 - xxix, 687 p. :  ill. (some col.) ;  26 cm. 
<br/><br/> First ed. published as : Computers and information processing. c1985.  Includes index. 
<br/><br/><label>ISBN: </label>0805369422 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Business--Data processing<br/>Office practice--Automation
<br/><br/><label>Dewey Class. No.: </label>658.054  / O45C 1989