@BOOKLET {MIGNOUNA:2014a, title = {Yam: a cash crop in West Africa: YIIFSWA working paper series, No. 3}, author = {Mignouna, D. and Akinola, A. and Suleman, I. and Nweke, F. and Abdoulaye, T. }, year = {2014}, address = {Ibadan, Nigeria}, howpublished = {YIIFSWA working paper series}, note = {ISBN: 978-978-8444-38-1.; 46p; Yam Improvement for Income and Food Security in West Africa (YIIFSWA); WAHub; RTB; Yam}, }