Cita APA (7a ed.)

Purpura, P. P. (1991). The security handbook. Delmar Publ.

Cita Chicago Style (17a ed.)

Purpura, Philip P. The Security Handbook. Albany, NY: Delmar Publ, 1991.

Cita MLA (8a ed.)

Purpura, Philip P. The Security Handbook. Delmar Publ, 1991.