Kling, Judith A. <br/><br/>
A+ certification :   operating systems / 
Judith A. Kling, Rozann e M. Whallen. 
 - New York :   Element K. Press,   2000. 
 - xviii, 614 p. :   ill. ;   23 cm. 
<br/><br/>  Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Computer technicians-- Certification.<br/> Operating systems (Computers)-- Examinations-- Study guides.
<br/><br/><label>Dewey Class. No.: </label>005.43