@BOOK {MANYONG:2005, title = {Agriculture in Nigeria: identifying opportunities for increased commercialization and investment}, author = {Manyong, V. and Ikpi, A. * and Olayemi, J. K. * and Yusuf, S. A. * and Omonona, B. T. * and Okoruwa, V. * and Idachaba, F. S. *}, year = {2005}, publisher = {International Institute of Tropical Agriculture (IITA)}, address = {Ibadan, Nigeria}, note = {190p.}, }