@BOOKLET {KAMARA:2020a, title = {Guide to maize production in northern Nigeria}, author = {Kamara, A. and Kamai, N. and Omoigui, L. and Togola, A. and Ekeleme, F. and Onyibe, J. E. }, year = {2020}, month = {March}, address = {Ibadan, Nigeria}, howpublished = {Revised edition}, note = {WAHub; Science Area PPPH; BPB; CRP Maize; ISBN 978-978-131-370-7; 26p.}, }