Não informado. (1881). Tropical agriculturist. Ceylon Agricultural Society, Department of Agriculture.
Chicagoスタイル(17版)引用形式Não informado. Tropical Agriculturist. Peradeniya, Sri Lanka: Ceylon Agricultural Society, Department of Agriculture, 1881.
MLA(8版)引用形式Não informado. Tropical Agriculturist. Ceylon Agricultural Society, Department of Agriculture, 1881.
警告: この引用は必ずしも正確ではありません.