Cita APA (7a ed.)

Helfrich, D., & Helfrich, D. C. (2007). Cisco Network Admission Control. Vol. 1, NAC architecture and design (1st edition.). Cisco.

Cita Chicago Style (17a ed.)

Helfrich, Denise, y Denise Contributor Helfrich. Cisco Network Admission Control. Vol. 1, NAC Architecture and Design. 1st edition. [Place of publication not identified]: Cisco, 2007.

Cita MLA (9a ed.)

Helfrich, Denise, y Denise Contributor Helfrich. Cisco Network Admission Control. Vol. 1, NAC Architecture and Design. 1st edition. Cisco, 2007.