Asian Development Bank. Environment Division. Office of Environment and Social Development. (1996). Economic evaluation of environmental impacts: A workbook, parts I and II. Asian Development Bank.
Dyfyniad Arddull ChicagoAsian Development Bank. Environment Division. Office of Environment and Social Development. Economic Evaluation of Environmental Impacts: A Workbook, Parts I and II. Manila: Asian Development Bank, 1996.
Dyfyniad MLAAsian Development Bank. Environment Division. Office of Environment and Social Development. Economic Evaluation of Environmental Impacts: A Workbook, Parts I and II. Asian Development Bank, 1996.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.