World Bank & Shah, A. (2005). Public services delivery. World Bank.
Chicago Style aipamenaWorld Bank and Anwar Shah. Public Services Delivery. Washington, D.C.: World Bank, 2005.
MLA aipamenaWorld Bank and Anwar Shah. Public Services Delivery. World Bank, 2005.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.