Cita APA (7a ed.)

Smith, B., & Graham, R. (2012). CompTIA A+ 220-801 and 220-802 (1st edition.). Pearson IT Certification.

Cita Chicago Style (17a ed.)

Smith, Beth, y Robin Graham. CompTIA A+ 220-801 and 220-802. 1st edition. Pearson IT Certification, 2012.

Cita MLA (9a ed.)

Smith, Beth, y Robin Graham. CompTIA A+ 220-801 and 220-802. 1st edition. Pearson IT Certification, 2012.