Dyfyniad APA

Garfinkel, S., & Spafford, G. (1996). Practical UNIX and Internet Security (2nd ed.). O'Reilly & Associates.

Dyfyniad Arddull Chicago

Garfinkel, Simson, and Gene Spafford. Practical UNIX and Internet Security. 2nd ed. United States of America: O'Reilly & Associates, 1996.

Dyfyniad MLA

Garfinkel, Simson, and Gene Spafford. Practical UNIX and Internet Security. 2nd ed. O'Reilly & Associates, 1996.

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