APA aipamena

(1993). Biological Fixation Of Nitrogen For Ecology And Sustainable Agriculture. Springer-Verlag Berlin.

Chicago Style aipamena

Biological Fixation Of Nitrogen For Ecology And Sustainable Agriculture. Springer-Verlag Berlin, 1993.

MLA aipamena

Biological Fixation Of Nitrogen For Ecology And Sustainable Agriculture. Springer-Verlag Berlin, 1993.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.