APA
Karunaratne S W, John R S & Piyadasa K A. (1971). Use of natural rubber latex to improve seepage resistance of soils. : Rubber Research Institute of Ceylon Quarterly Journal.
Chicago
Karunaratne S W, John R S and Piyadasa K A. 1971. Use of natural rubber latex to improve seepage resistance of soils. : Rubber Research Institute of Ceylon Quarterly Journal.
Harvard
Karunaratne S W, John R S and Piyadasa K A. (1971). Use of natural rubber latex to improve seepage resistance of soils. : Rubber Research Institute of Ceylon Quarterly Journal.
MLA
Karunaratne S W, John R S and Piyadasa K A. Use of natural rubber latex to improve seepage resistance of soils. : Rubber Research Institute of Ceylon Quarterly Journal. 1971.