American National Standards Institute, American National Standards Institute, National Fire Protection Association (Estados Unidos), & National Fire Protection Association (Estados Unidos). (2006). Standard for acetylene cylinder charging plants: NFPA 51A (2006 edition.). Quincy, Mass.: National Fire Protection Association.
Chicago Style CitationAmerican National Standards Institute, American National Standards Institute, National Fire Protection Association (Estados Unidos), and National Fire Protection Association (Estados Unidos). Standard for Acetylene Cylinder Charging Plants: NFPA 51A. 2006 edition. Quincy, Mass.: National Fire Protection Association, 2006.
MLA CitationAmerican National Standards Institute, American National Standards Institute, National Fire Protection Association (Estados Unidos), and National Fire Protection Association (Estados Unidos). Standard for Acetylene Cylinder Charging Plants: NFPA 51A. 2006 edition. Quincy, Mass.: National Fire Protection Association, 2006.