Naciones Unidas. Comisión Económica para Europa. (1990). European agreement concerning the international carriage of dangerous goods by road (adr) and protocol of signature: Done at Geneva on 30 september 1957. United Nations.
Chicago Style (17th ed.) CitationNaciones Unidas. Comisión Económica para Europa. European Agreement Concerning the International Carriage of Dangerous Goods by Road (adr) and Protocol of Signature: Done at Geneva on 30 September 1957. New York: United Nations, 1990.
MLA (9th ed.) CitationNaciones Unidas. Comisión Económica para Europa. European Agreement Concerning the International Carriage of Dangerous Goods by Road (adr) and Protocol of Signature: Done at Geneva on 30 September 1957. United Nations, 1990.