Cita APA (7a ed.)

Lammle, T. (2004). CCNA: Cisco Certified Network Associate study guide (4th ed.). Sybex.

Cita Chicago Style (17a ed.)

Lammle, Todd. CCNA: Cisco Certified Network Associate Study Guide. 4th ed. San Francisco [etc.]: Sybex, 2004.

Cita MLA (9a ed.)

Lammle, Todd. CCNA: Cisco Certified Network Associate Study Guide. 4th ed. Sybex, 2004.