APA
Ratnayake C M B, . (1973). Assay of growth inhibitors in seed oil and normal and diseased (Brown bast) bark of Hevea. : Rubber Research Institute of Sri Lanka Quarterly Journal.
Chicago
Ratnayake C M B, . 1973. Assay of growth inhibitors in seed oil and normal and diseased (Brown bast) bark of Hevea. : Rubber Research Institute of Sri Lanka Quarterly Journal.
Harvard
Ratnayake C M B, . (1973). Assay of growth inhibitors in seed oil and normal and diseased (Brown bast) bark of Hevea. : Rubber Research Institute of Sri Lanka Quarterly Journal.
MLA
Ratnayake C M B, . Assay of growth inhibitors in seed oil and normal and diseased (Brown bast) bark of Hevea. : Rubber Research Institute of Sri Lanka Quarterly Journal. 1973.