Catura-Houser, T., & O'Boyle, H. (2003). ExamInsight for A+ core hardware technology exam 220-221. TotalRecall Publications, Inc..
Lua i Stíl Chicago (17ú heag.)Catura-Houser, Tim, agus Helen O'Boyle. ExamInsight for A+ Core Hardware Technology Exam 220-221. Friendswood, Tex.: TotalRecall Publications, Inc., 2003.
Lua MLA (9ú heag.)Catura-Houser, Tim, agus Helen O'Boyle. ExamInsight for A+ Core Hardware Technology Exam 220-221. TotalRecall Publications, Inc., 2003.
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