@MANUAL {ABAIDOO:2013, title = {Legume inoculation technology manual: putting nitrogen fixation to work for smallholder farmers in Africa}, author = {Abaidoo, R. C. * and Ewusi-Mensah, N. * and Opoku, A. * and N2Africa, and IITA, }, year = {2013}, month = {October}, organization = {N2Africa}, note = {Learning material; 22p.; N2Africa Project}, }