APA সাইটেশন

The World Bank. (2002). Operation evaluation department (OED): First 30 years. Washington, D.C: The World Bank.

শিকাগো স্টাইলে সাইটেশন

The World Bank. Operation Evaluation Department (OED): First 30 Years. Washington, D.C: The World Bank, 2002.

এমএলএ সাইটেশন

The World Bank. Operation Evaluation Department (OED): First 30 Years. Washington, D.C: The World Bank, 2002.