APA
Ranatunga. A.S, Izumi K., . (1974). Production of other crops in paddy fields in Yala 1972. Agrarian Research & Training Institute (now known as the Hector Kobbekaduwa Agrarian Research and Training Institute): Colombo.
Chicago
Ranatunga. A.S, Izumi K, . 1974. Production of other crops in paddy fields in Yala 1972. Agrarian Research & Training Institute (now known as the Hector Kobbekaduwa Agrarian Research and Training Institute): Colombo.
Harvard
Ranatunga. A.S, Izumi K., . (1974). Production of other crops in paddy fields in Yala 1972. Agrarian Research & Training Institute (now known as the Hector Kobbekaduwa Agrarian Research and Training Institute): Colombo.
MLA
Ranatunga. A.S, Izumi K, . Production of other crops in paddy fields in Yala 1972. Agrarian Research & Training Institute (now known as the Hector Kobbekaduwa Agrarian Research and Training Institute): Colombo. 1974.