the World Bank. World development indicators 2002. World Bank.
Lua i Stíl Chicago (17ú heag.)the World Bank. World Development Indicators 2002. Washington: World Bank.
Lua MLA (9ú heag.)the World Bank. World Development Indicators 2002. World Bank.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.