Characterisation of dairy systems supplying the Nairobi milk market - Owango, M.O.; Muriuki, H.; Staal, Steven J.; Lukuyu, Ben A.; Gichungu, G.; Musembi, F.; Kenyanjui, M.; Njubi, D.; Baltenweck, Isabelle; Thorpe, W.R. (International Livestock Research Institute, 1998)