National Fire Protection Association & National Fire Protection Association. Technical Committee on Hazardous Materials Response Personnel. (1997). NFPA 471, recommended practice for responding to hazardous materials incidents (1997 ed.). National Fire Protection Association,.
Citação do estilo Chicago (17ª ed.)National Fire Protection Association e National Fire Protection Association. Technical Committee on Hazardous Materials Response Personnel. NFPA 471, Recommended Practice for Responding to Hazardous Materials Incidents. 1997 ed. Quincy, Mass.: National Fire Protection Association,, 1997.
Citação MLA (8ª ed.)National Fire Protection Association e National Fire Protection Association. Technical Committee on Hazardous Materials Response Personnel. NFPA 471, Recommended Practice for Responding to Hazardous Materials Incidents. 1997 ed. National Fire Protection Association,, 1997.