Andrews, Jean. , A+ Guide to software; managing, maintaining and troubleshooting / Jean Andrew, edited by Stephen Helba, Nick Lombardi and Marah Bellegarde. - 6th Ed. - xli, 656 pages : color illustrations ; 29 cm. ISBN: 9781133135135 Subjects--Topical Terms: Electronic data processing personnel --Certification.Computer software --Examinations --Study guides.Computer technicians--Certification--Study guides. LC Class. No.: QA76.3 / .A52 2013