Cita APA

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.

Citación estilo Chicago

American National Standards Institute, American National Standards Institute, National Fire Protection Association (Estados Unidos), y National Fire Protection Association (Estados Unidos). Standard for Acetylene Cylinder Charging Plants: NFPA 51A. 2006 edition. Quincy, Mass.: National Fire Protection Association, 2006.

Cita MLA

American National Standards Institute, American National Standards Institute, National Fire Protection Association (Estados Unidos), y National Fire Protection Association (Estados Unidos). Standard for Acetylene Cylinder Charging Plants: NFPA 51A. 2006 edition. Quincy, Mass.: National Fire Protection Association, 2006.