APA (7th ed.) Zitazioa

ProQuest (Firm). (2010). The little green data book: From the World Development Indicators. World Bank.

Chicago Style (17th ed.) Zitazioa

ProQuest (Firm). The Little Green Data Book: From the World Development Indicators. Washington, D.C.: World Bank, 2010.

MLA (9th ed.) Zitazioa

ProQuest (Firm). The Little Green Data Book: From the World Development Indicators. World Bank, 2010.