APA aipamena

WorldBankGroup. (2015). The World Bank Group A to Z. World Bank.

Chicago Style aipamena

WorldBankGroup. The World Bank Group A to Z. World Bank, 2015.

MLA aipamena

WorldBankGroup. The World Bank Group A to Z. World Bank, 2015.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.