CompTIA A+:Exam 220-901/ 
Taylor, Pamela J; Sandler, Gail 
 - 1.1 
 - US:  Logical Operations,  2016 
 - 455p. 
<br/><br/><label>ISBN: </label>9781424626236 
<br/><br/><label>Dewey Class. No.: </label>004.076