@BOOK {IITA:2008, title = {R4D Review; 1}, author = {IITA, }, editor = {Lopez, K. and Bramel, P. and Abele, S. and Asiedu, R. and Chikoye, D. and Koper, E. }, year = {2008}, month = {October}, edition = {1}, publisher = {International Institute of Tropical Agriculture (IITA)}, address = {Ibadan, Nigeria}, url = {www.r4dreview.org}, }