American National Standards Institute (EE.UU.), & National Fire Protection Association (EE.UU.). (2006). NFPA 54: National fuel gas code. Washington, D.C.: American Gas Association ; Quincy, Mass. : National Fire Protection Association.
Chicago Style CitationAmerican National Standards Institute (EE.UU.), and National Fire Protection Association (EE.UU.). NFPA 54: National Fuel Gas Code. Washington, D.C.: American Gas Association ; Quincy, Mass. : National Fire Protection Association, 2006.
MLA CitationAmerican National Standards Institute (EE.UU.), and National Fire Protection Association (EE.UU.). NFPA 54: National Fuel Gas Code. Washington, D.C.: American Gas Association ; Quincy, Mass. : National Fire Protection Association, 2006.
Warning: These citations may not always be 100% accurate.