(1984). Environmental guidelines for the diesel vehicle. Industry & Environment Office, United NationsEnvironment Programme.
Citazione stile Chigago Style (17a edizione)Environmental Guidelines for the Diesel Vehicle. [Paris?]: Industry & Environment Office, United NationsEnvironment Programme, 1984.
Citatione MLA (9a ed.)Environmental Guidelines for the Diesel Vehicle. Industry & Environment Office, United NationsEnvironment Programme, 1984.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.