Não informado. (1931). Journal of the Rubber Research Institute of Malaya. Rubber Research Institute of Malaysia.
Chicagoスタイル(17版)引用形式Não informado. Journal of the Rubber Research Institute of Malaya. Kuala Lumpur: Rubber Research Institute of Malaysia, 1931.
MLA(8版)引用形式Não informado. Journal of the Rubber Research Institute of Malaya. Rubber Research Institute of Malaysia, 1931.
警告: この引用は必ずしも正確ではありません.