Energy Sector Management Assistance Programme & Foley, G. (1997). The Niger household energy project: Promoting rural fuelwood markets and village management of natural woodlands. World Bank.
Chicago Style aipamenaEnergy Sector Management Assistance Programme and Gerald Foley. The Niger Household Energy Project: Promoting Rural Fuelwood Markets and Village Management of Natural Woodlands. Washington, D.C: World Bank, 1997.
MLA aipamenaEnergy Sector Management Assistance Programme and Gerald Foley. The Niger Household Energy Project: Promoting Rural Fuelwood Markets and Village Management of Natural Woodlands. World Bank, 1997.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.