Não informado. (1981). Coffee and Cocoa International. International Trade Publications.
Chicagoスタイル(17版)引用形式Não informado. Coffee and Cocoa International. London: International Trade Publications, 1981.
MLA(8版)引用形式Não informado. Coffee and Cocoa International. International Trade Publications, 1981.
警告: この引用は必ずしも正確ではありません.