O'Leary, Timothy J. <br/><br/>
Computing essentials 2008 / 
Timothy J. O'Leary, Linda I. O'Leary. 
 - Boston :  McGraw-Hill,  c2008. 
 - xxviii, 514 pages :  illustrations ;  28 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>9780071267182 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electronic data processing.