@BOOKLET {N2AFRICA:2014j, title = {Biological nitrogen fixation and grain legumes: putting nitrogen fixation to work for smallholder farmers in Africa}, author = {N2Africa, }, year = {2014}, month = {October}, address = {N2Africa}, howpublished = {Booklet}, note = {CRP Grain Legumes; Grain Legumes; 24p.; N2Africa Project}, }