IRRI. (1978). Farm-level constraints to high rice yields in Asia: 1974 - 1977. Manila: IRRI.
Chicago Style aipamenaIRRI. Farm-level Constraints to High Rice Yields in Asia: 1974 - 1977. Manila: IRRI, 1978.
MLA aipamenaIRRI. Farm-level Constraints to High Rice Yields in Asia: 1974 - 1977. Manila: IRRI, 1978.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.