Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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