APA (7th ed.) Zitazioa
(2016). Benchmarking public procurement 2016: Assessing public procurement systems in 77 economies. World Bank.
Chicago Style (17th ed.) Zitazioa
Benchmarking Public Procurement 2016: Assessing Public Procurement Systems in 77 Economies. Washington, District of Columbia: World Bank, 2016.
MLA (9th ed.) Zitazioa
Benchmarking Public Procurement 2016: Assessing Public Procurement Systems in 77 Economies. World Bank, 2016.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.