Dyfyniad APA

Burns, R. C. (1975). Nitrogen fixation in bacteria and higher plants. Springer-Verlag.

Dyfyniad Arddull Chicago

Burns, Richard C. Nitrogen Fixation in Bacteria and Higher Plants. Berlin: Springer-Verlag, 1975.

Dyfyniad MLA

Burns, Richard C. Nitrogen Fixation in Bacteria and Higher Plants. Springer-Verlag, 1975.

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