TY - BOOK AU - de Soyza A G A AU - Abeywardene V AU - Jayaratne AHR AU - Samaranayake C AU - Wilbert TI - Survey on the incidence and pattern of distribution of the brown bast disease of Hevea, in Sri Lanka PY - 1983/// PB - Journal of the Rubber Research Institute of Sri Lanka KW - Brown bast disease KW - Hevea KW - Sri Lanka ER -