Hansen, A. P. (1994). Symbiotic N2 Fixation of Crop Legumes: Achievements and perspectives. Neunkirchen, Germany: Margraf Verlag.
Trích dẫn kiểu ChicagoHansen, Alexander P. Symbiotic N2 Fixation of Crop Legumes: Achievements and Perspectives. Neunkirchen, Germany: Margraf Verlag, 1994.
Deismireacht MLAHansen, Alexander P. Symbiotic N2 Fixation of Crop Legumes: Achievements and Perspectives. Neunkirchen, Germany: Margraf Verlag, 1994.
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