Cita APA (7a ed.)

Johnson, D. (1999). Upgrading & repairing your PC answers! McGraw-Hill.

Cita Chicago Style (17a ed.)

Johnson, Dave. Upgrading & Repairing Your PC Answers! McGraw-Hill, 1999.

Cita MLA (8a ed.)

Johnson, Dave. Upgrading & Repairing Your PC Answers! McGraw-Hill, 1999.