Dyfyniad APA

Dutta, S. (1991). Biological nitrogen fixation associated with: Rice production. Oxford and IBH.

Dyfyniad Arddull Chicago

Dutta, S.K. Biological Nitrogen Fixation Associated with: Rice Production. New Delhi: Oxford and IBH, 1991.

Dyfyniad MLA

Dutta, S.K. Biological Nitrogen Fixation Associated with: Rice Production. Oxford and IBH, 1991.

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