Cita APA (7a ed.)

Sieling, B. A. (2013). CCNA Voice Lab Manual (1st edition.). Cisco Press.

Cita Chicago Style (17a ed.)

Sieling, Brent Author. CCNA Voice Lab Manual. 1st edition. [Place of publication not identified]: Cisco Press, 2013.

Cita MLA (9a ed.)

Sieling, Brent Author. CCNA Voice Lab Manual. 1st edition. Cisco Press, 2013.