The World Bank. (2002). Operation evaluation department (OED): First 30 years. Washington, D.C: The World Bank.
Trích dẫn kiểu ChicagoThe World Bank. Operation Evaluation Department (OED): First 30 Years. Washington, D.C: The World Bank, 2002.
Trích dẫn MLAThe World Bank. Operation Evaluation Department (OED): First 30 Years. Washington, D.C: The World Bank, 2002.
Cảnh báo: Các trích dẫn này có thể không phải lúc nào cũng chính xác 100%.