APA aipamena

The World Bank. (2002). World development indicators 2002. Washington DC: The World Bank.

Chicago Style aipamena

The World Bank. World Development Indicators 2002. Washington DC: The World Bank, 2002.

MLA aipamena

The World Bank. World Development Indicators 2002. Washington DC: The World Bank, 2002.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.