Dyfyniad APA

IRRI. (1978). Farm-level constraints to high rice yields in Asia: 1974 - 1977. Manila: IRRI.

Dyfyniad Arddull Chicago

IRRI. Farm-level Constraints to High Rice Yields in Asia: 1974 - 1977. Manila: IRRI, 1978.

Dyfyniad MLA

IRRI. Farm-level Constraints to High Rice Yields in Asia: 1974 - 1977. Manila: IRRI, 1978.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.