Não informado. (1976). Journal of the Rubber Research Institute of Sri Lanka. Rubber Research Institute of Sri Lanka.
Cita Chicago Style (17a ed.)Não informado. Journal of the Rubber Research Institute of Sri Lanka. Agalawatta, Sri Lanka: Rubber Research Institute of Sri Lanka, 1976.
Cita MLA (8a ed.)Não informado. Journal of the Rubber Research Institute of Sri Lanka. Rubber Research Institute of Sri Lanka, 1976.
Precaución: Estas citas no son 100% exactas.