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 Pub. Co.,  1989 
 - xxix, 687 p. :  ill. (some col.) ;  27 cm. 
<br/><br/> First ed. published as: Computers and information processing. c1985.  Includes index 
<br/><br/><label>ISBN: </label>0805369422 
<br/><br/><label>LCCN: </label>88-026055 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Business--Data processing<br/>Office practice--Automation