@INPROCEEDINGS {O.:2002, title = {The economics of cowpea in West Africa}, author = {Coulibaly, O. and Lowenberg-DeBoer, J. }, booktitle = {Challenges and opportunities for enhancing sustainable cowpea production: proceedings of the World Cowpea Conference III held at IITA, Ibadan, Nigeria, 4-8 Sept. 2000}, year = {2002}, pages = {351--366}, publisher = {International Institute of Tropical Agriculture (IITA)}, location = {Ibadan, Nigeria}, }