Não informado. (1968). Commodity trade and price trends. International Bank for Reconstruction and Development.
Chicago-Zitierstil (17. Ausg.)Não informado. Commodity Trade and Price Trends. Washington: International Bank for Reconstruction and Development, 1968.
MLA-Zitierstil (8. Ausg.)Não informado. Commodity Trade and Price Trends. International Bank for Reconstruction and Development, 1968.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.