APA
Nugawela A, Aluthhewage R K & Wickremasinghe W N. (1984). Variations involved in field measurements of transpiration rates and stomatal diffusive resistance of Hevea brasiliensis Muell. Arg. Clones and the relationship of the latter with net photosynthetic rates. : Journal of the Rubber Research Institute of Sri Lanka.
Chicago
Nugawela A, Aluthhewage R K and Wickremasinghe W N. 1984. Variations involved in field measurements of transpiration rates and stomatal diffusive resistance of Hevea brasiliensis Muell. Arg. Clones and the relationship of the latter with net photosynthetic rates. : Journal of the Rubber Research Institute of Sri Lanka.
Harvard
Nugawela A, Aluthhewage R K and Wickremasinghe W N. (1984). Variations involved in field measurements of transpiration rates and stomatal diffusive resistance of Hevea brasiliensis Muell. Arg. Clones and the relationship of the latter with net photosynthetic rates. : Journal of the Rubber Research Institute of Sri Lanka.
MLA
Nugawela A, Aluthhewage R K and Wickremasinghe W N. Variations involved in field measurements of transpiration rates and stomatal diffusive resistance of Hevea brasiliensis Muell. Arg. Clones and the relationship of the latter with net photosynthetic rates. : Journal of the Rubber Research Institute of Sri Lanka. 1984.