CompTIA A+ Exam 220-902/ 
Pamela J. Taylor; Gail Sandler 
 - Student Edition 
 - US:  Logical Operations,  2016 
 - 464p;  29cm. 
<br/><br/><label>ISBN: </label>9781424626250 
<br/><br/><label>Dewey Class. No.: </label>004.16