Gaya APA

Holcombe, J., Holcombe, C. (2007). CompTIA A+ Certification Study Guide, Sixth Edition (disertai CD) . New York: McGraw-Hill International.

Gaya MLA

Holcombe, Jane., Holcombe, Charles. "CompTIA A+ Certification Study Guide, Sixth Edition (disertai CD)". New York: McGraw-Hill International, 2007. Text.