Não informado. (1963). Bulletin of statistics on world trade in engineering products. United Nations, Economic Commission for Europe.
Chicagoスタイル(17版)引用形式Não informado. Bulletin of Statistics on World Trade in Engineering Products. New York: United Nations, Economic Commission for Europe, 1963.
MLA(8版)引用形式Não informado. Bulletin of Statistics on World Trade in Engineering Products. United Nations, Economic Commission for Europe, 1963.
警告: この引用は必ずしも正確ではありません.