Nile Basin livestock-water productivity - Peden, Donald G.; Ebong, Cyprian; El-Khodari, N.; Gessesse, H.; Jabbar, M.A.; Kiwuwa, G.H.; Kumsa, K.; Merrey, Douglas J.; Ndikumana, J.; Rosales, M.; Sally, Hilmy; van Koppen, Barbara; et al. (International Livestock Research Institute, 2003)