Παραπομπή APA

Garfinkel, S., & Spafford, G. (1999). Practical Unix & Internet security. Shroff Publishers and distributors.

Παραπομπή Chicago Style

Garfinkel, Simson, και Gene Spafford. Practical Unix & Internet Security. Mumbai: Shroff Publishers and distributors, 1999.

Παραπομπή MLA

Garfinkel, Simson, και Gene Spafford. Practical Unix & Internet Security. Shroff Publishers and distributors, 1999.