Não informado. (1958). Cocoa statistics. Food and Agriculture Organization of the United Nations.
Chicagoスタイル(17版)引用形式Não informado. Cocoa Statistics. Rome: Food and Agriculture Organization of the United Nations, 1958.
MLA(8版)引用形式Não informado. Cocoa Statistics. Food and Agriculture Organization of the United Nations, 1958.
警告: この引用は必ずしも正確ではありません.