Παραπομπή APA

Garfinkel, S., Spafford, G., & Schwartz, A. (2003). Practical UNIX and Internet Security (3rd ed.). Sebastopol, CA: O' Reilly and Associates, Inc..

Παραπομπή Chicago Style

Garfinkel, Simson, Gene Spafford, and Alan Schwartz. Practical UNIX and Internet Security. 3rd ed. Sebastopol, CA: O' Reilly and Associates, Inc., 2003.

Παραπομπή MLA

Garfinkel, Simson, Gene Spafford, and Alan Schwartz. Practical UNIX and Internet Security. 3rd ed. Sebastopol, CA: O' Reilly and Associates, Inc., 2003.

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