APA aipamena

World Bank. (2002). The little data book 2002. Washington DC: The World Bank.

Chicago Style aipamena

World Bank. The Little Data Book 2002. Washington DC: The World Bank, 2002.

MLA aipamena

World Bank. The Little Data Book 2002. Washington DC: The World Bank, 2002.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.