Não informado. (1965). Tropical Products Institute. Tropical Products Institute.
Chicagoスタイル(17版)引用形式Não informado. Tropical Products Institute. London: Tropical Products Institute, 1965.
MLA(8版)引用形式Não informado. Tropical Products Institute. Tropical Products Institute, 1965.
警告: この引用は必ずしも正確ではありません.