Não informado. (1975). Abstracts on tropical agriculture. Royal Tropical Institute.
Chicagoスタイル(17版)引用形式Não informado. Abstracts on Tropical Agriculture. Amsterdam: Royal Tropical Institute, 1975.
MLA(8版)引用形式Não informado. Abstracts on Tropical Agriculture. Royal Tropical Institute, 1975.
警告: この引用は必ずしも正確ではありません.