Dyfyniad APA

R W Herdt. (1983). Adoption, spread and production impact of modern rice varieties in Asia. Manila: IRRI.

Dyfyniad Arddull Chicago

R W Herdt. Adoption, Spread and Production Impact of Modern Rice Varieties in Asia. Manila: IRRI, 1983.

Dyfyniad MLA

R W Herdt. Adoption, Spread and Production Impact of Modern Rice Varieties in Asia. Manila: IRRI, 1983.

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