O'Leary, Timothy J.,  1947- <br/><br/>
Computing essentials 1999 2000 / 
Timothy J. O'Leary, Linda I. O'Leary 
 - Brief ed. 
 - Boston :  Irwin McGraw-Hill,  1999 
 - xvi, 19 p. :  ill. ;  27 cm. 
<br/><br/><label>ISBN: </label>0073655554 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electronic data processing