Dyfyniad APA

International Rice Research Institute. (1978). Soils and rice. Los Banos, Philippines: IRRI.

Dyfyniad Arddull Chicago

International Rice Research Institute. Soils and Rice. Los Banos, Philippines: IRRI, 1978.

Dyfyniad MLA

International Rice Research Institute. Soils and Rice. Los Banos, Philippines: IRRI, 1978.

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