(2003). OSHA: Stallcup's high-voltage and telecommunications regulations simplified. NFPA (National Fire Protection Association).
Cita Chicago (17th ed.)OSHA: Stallcup's High-voltage and Telecommunications Regulations Simplified. Quincy, Massachusetts: NFPA (National Fire Protection Association), 2003.
Cita MLA (8th ed.)OSHA: Stallcup's High-voltage and Telecommunications Regulations Simplified. NFPA (National Fire Protection Association), 2003.
Atenció: Aquestes cites poden no estar 100% correctes.