O'Leary, Timothy J.,  1947- <br/><br/>
Computing essentials :  making IT work for you : introductory 2015 / Timothy J. O'Leary, Linda I. O'Leary, Daniel A. O'Leary. 

 - New York :  McGraw-Hill,  2015. 
 - xxii, 298 p. :  col. ill. ;  28 cm. 
<br/><br/><label>ISBN: </label>9781259223150 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electronic data processing.