Investing in the livestock sector: Why good numbers matter: A sourcebook for decision makers on how to improve livestock data - Pica-Ciamarra, Ugo; Baker, Derek; Morgan, Nancy; Zezza, Alberto; Azzarri, Carlo; Ly, Cheikh; Nsiima, Longin; Nouala, Simplice; Okello, Patrick; Sserugga, Joseph (World Bank, 2014)