Dyfyniad APA

IRRI. (1998). Opportunities for biological nitrogen fixation in rice and other non-legumes. Dordrecht: Kluwer.

Dyfyniad Arddull Chicago

IRRI. Opportunities for Biological Nitrogen Fixation in Rice and Other Non-legumes. Dordrecht: Kluwer, 1998.

Dyfyniad MLA

IRRI. Opportunities for Biological Nitrogen Fixation in Rice and Other Non-legumes. Dordrecht: Kluwer, 1998.

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