Cita APA

American National Standards Institute, American National Standards Institute, National Fire Protection Association (Estados Unidos), & National Fire Protection Association (Estados Unidos). (2007). Standard on explosion prevention systems: NFPA 69 (2008 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 On Explosion Prevention Systems: NFPA 69. 2008 edition. Quincy, Mass.: National Fire Protection Association, 2007.

Cita MLA

American National Standards Institute, American National Standards Institute, National Fire Protection Association (Estados Unidos), y National Fire Protection Association (Estados Unidos). Standard On Explosion Prevention Systems: NFPA 69. 2008 edition. Quincy, Mass.: National Fire Protection Association, 2007.