Biological nitrogen fixation - Stacey, G.; Burris, R. H.; Evans, H. J. (New York : Plenum Press, 1984)
"Proceedings of a training course ... held January 18-29, 1982, in Caracas, Venezuela"--T.p. verso.
Keywords: Nitrogen--Fixation--Congresses.; Rhizobium--Congresses.; Nitrogen-fixing microorganisms -- Congresses; Legumes--Congresses.; Nitrogen-fixing plants--Congresses.