APA (7th ed.) Citation

Norton, P., & Jourdain, R. (1991). The Hard disk companion (2nd ed.). Brady.

Chicago Style (17th ed.) Citation

Norton, Peter, and Robert Jourdain. The Hard Disk Companion. 2nd ed. New York: Brady, 1991.

MLA (9th ed.) Citation

Norton, Peter, and Robert Jourdain. The Hard Disk Companion. 2nd ed. Brady, 1991.