O'Leary, Timothy J. <br/><br/>
Computing essentials 2012 /  making IT work for you 
Timothy J. O'Leary, Linda I. O'Leary 
 - New York  McGraw-Hill  2012 
 - xxviii, 516p.  ill.  28cm. 
<br/><br/><label>ISBN: </label>9780071221078  RM336.72 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computers<br/>Electronic data processing