APA
World Bank (Washington)and United Nations Development Programme (New York), . (19881989). Energy sector Management assistance program (ESMAP). Washington: World Bank.
Chicago
World Bank (Washington)and United Nations Development Programme (New York), . 19881989. Energy sector Management assistance program (ESMAP). Washington: World Bank.
Harvard
World Bank (Washington)and United Nations Development Programme (New York), . (19881989). Energy sector Management assistance program (ESMAP). Washington: World Bank.
MLA
World Bank (Washington)and United Nations Development Programme (New York), . Energy sector Management assistance program (ESMAP). Washington: World Bank. 19881989.