APA (7th ed.) Citation

United Nations Environment Programme. (1981). Environmental guidelines for the motor vehicle and its use.

Chicago Style (17th ed.) Citation

United Nations Environment Programme. Environmental Guidelines for the Motor Vehicle and Its Use. [s.l. :Industry & Environment Office, United Nations Environment Programme, 1981.

MLA (9th ed.) Citation

United Nations Environment Programme. Environmental Guidelines for the Motor Vehicle and Its Use. 1981.