Cita APA

National Fire Protection Association (Estados Unidos), & National Fire Protection Association (Estados Unidos). (1986). Symbols for fire fighting operations. Quincy, Mass.: The Association.

Citación estilo Chicago

National Fire Protection Association (Estados Unidos), y National Fire Protection Association (Estados Unidos). Symbols for Fire Fighting Operations. Quincy, Mass.: The Association, 1986.

Cita MLA

National Fire Protection Association (Estados Unidos), y National Fire Protection Association (Estados Unidos). Symbols for Fire Fighting Operations. Quincy, Mass.: The Association, 1986.