APA-čujuhus (7. p.)
World Bank & ebrary, Inc. (2011). Africa development indicators 2011. World Bank.
Chicago-čujuhus (17. p.)
World Bank juo Inc ebrary. Africa Development Indicators 2011. Washington, D.C.: World Bank, 2011.
MLA-čujuhus (9. p.)
World Bank juo Inc ebrary. Africa Development Indicators 2011. World Bank, 2011.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.