(1984). Environmental guidelines for the diesel vehicle. Industry & Environment Office, United NationsEnvironment Programme.
Chicago-referens (17:e uppl.)Environmental Guidelines for the Diesel Vehicle. [Paris?]: Industry & Environment Office, United NationsEnvironment Programme, 1984.
MLA-referens (9:e uppl.)Environmental Guidelines for the Diesel Vehicle. Industry & Environment Office, United NationsEnvironment Programme, 1984.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.