Dyfyniad APA

World Bank. (1997). Advancing sustainable development: The World Bank and Agenda 21. World Bank.

Dyfyniad Arddull Chicago

World Bank. Advancing Sustainable Development: The World Bank and Agenda 21. Washington, DC: World Bank, 1997.

Dyfyniad MLA

World Bank. Advancing Sustainable Development: The World Bank and Agenda 21. World Bank, 1997.

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