Dyfyniad APA

World Bank. (2001). African Development Indicators 2001. The international Bank for Reconstruction and Development.

Dyfyniad Arddull Chicago

World Bank. African Development Indicators 2001. Washington: The international Bank for Reconstruction and Development, 2001.

Dyfyniad MLA

World Bank. African Development Indicators 2001. The international Bank for Reconstruction and Development, 2001.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.