National Fire Protection Association
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National Fire Alarm Code.
National Fire Protection Assoc., Quincy, MA
NFPA 72,
National Fire Alarm Code [This standard is a consolidation of NFPA 71-1989; NFPA 72-1990; NFPA 72E-1990; NFPA 72G-1989; NFPA 72H-1988; NFPA 74-1989],
National Fire Protection Assoc., Quincy, MA,
1993