American National Standards Institute, American National Standards Institute, National Fire Protection Association (Estados Unidos), & National Fire Protection Association (Estados Unidos). (2007). Standard for the design and installation of oxygen-fuel gas systems for welding, cutting, and allied processes: NFPA 51 (2007 edition.). Quincy, Mass.: National Fire Protection Association.
Citación estilo ChicagoAmerican National Standards Institute, American National Standards Institute, National Fire Protection Association (Estados Unidos), y National Fire Protection Association (Estados Unidos). Standard for the Design and Installation of Oxygen-fuel Gas Systems for Welding, Cutting, and Allied Processes: NFPA 51. 2007 edition. Quincy, Mass.: National Fire Protection Association, 2007.
Cita MLAAmerican National Standards Institute, American National Standards Institute, National Fire Protection Association (Estados Unidos), y National Fire Protection Association (Estados Unidos). Standard for the Design and Installation of Oxygen-fuel Gas Systems for Welding, Cutting, and Allied Processes: NFPA 51. 2007 edition. Quincy, Mass.: National Fire Protection Association, 2007.