Dakora, Felix D.
[Editor];
Chimphango, Samson B. M.
[Other]
;
African Association for Biological Nitrogen Fixation,
InternationalNitrogenFixationCongress 15 2007 Kapstadt
Ladha, Jagdish K.
[Editor]
;
Symposium on Biological NitrogenFixation for Sustainable Agriculture 1994 Acapulco,
World Congress of Soil Science 15 1994 Acapulco