APA (7th ed.) Citation

National Fire Protection Association & American National Standards Institute. (1977). Carbon dioxide extinguishing systems 1977 (1977 edition.). NFPA.

Chicago Style (17th ed.) Citation

National Fire Protection Association and American National Standards Institute. Carbon Dioxide Extinguishing Systems 1977. 1977 edition. Boston: NFPA, 1977.

MLA (9th ed.) Citation

National Fire Protection Association and American National Standards Institute. Carbon Dioxide Extinguishing Systems 1977. 1977 edition. NFPA, 1977.

Warning: These citations may not always be 100% accurate.