Nitrogen fixation with non-legumes : the third international symposium on.... Helsinki, 2-8 September 1984 - International Symposium on Nitrogen Fixation with Non-legumes (3rd : 1984 : Helsinki, Finland).; Skinner, F. A. (Frederick Arthur), 1919-; Uomala, P. (Dordrecht : Martinus Nijhoff Publishers, 1986)
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Keywords: Micro -- organisms, Nitrogen -- fixing -- Congresses; Nitrogen -- Fixation -- Congresses