Dyfyniad APA

Whitman, M. E., & Mattord, H. J. (2012). Principles of information security .- 4th ed (4th ed.). Cengage Learning.

Dyfyniad Arddull Chicago

Whitman, Michael E., and Herbert J. Mattord. Principles of Information Security .- 4th Ed. 4th ed. New Delhi: Cengage Learning, 2012.

Dyfyniad MLA

Whitman, Michael E., and Herbert J. Mattord. Principles of Information Security .- 4th Ed. 4th ed. Cengage Learning, 2012.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.