Dyfyniad APA

Hansen, A. P. (1994). Symbiotic N2 Fixation of Crop Legumes: Achievements and perspectives. Neunkirchen, Germany: Margraf Verlag.

Dyfyniad Arddull Chicago

Hansen, Alexander P. Symbiotic N2 Fixation of Crop Legumes: Achievements and Perspectives. Neunkirchen, Germany: Margraf Verlag, 1994.

Dyfyniad MLA

Hansen, Alexander P. Symbiotic N2 Fixation of Crop Legumes: Achievements and Perspectives. Neunkirchen, Germany: Margraf Verlag, 1994.

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