Citação norma APA

United Nations. Economic Commission for Europe. (1966). Bulletin of statistics on world trade in engineering products. United Nations.

Citação norma Chicago

United Nations. Economic Commission for Europe. Bulletin of Statistics on World Trade in Engineering Products. New York: United Nations, 1966.

Citação norma MLA

United Nations. Economic Commission for Europe. Bulletin of Statistics on World Trade in Engineering Products. United Nations, 1966.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.