Cita APA (7a ed.)

National Fire Protection Association (Estados Unidos). (1998). National electrical code: NFPA 70 (1999 edition.).

Cita Chicago Style (17a ed.)

National Fire Protection Association (Estados Unidos). National Electrical Code: NFPA 70. 1999 edition. Quincy, MA (Batterymarch Park, Quincy 02269) : National Fire Protection Association, 1998.

Cita MLA (9a ed.)

National Fire Protection Association (Estados Unidos). National Electrical Code: NFPA 70. 1999 edition. 1998.