Dyfyniad APA

World Bank. (2008). World trade indicators 2008: Benchmarking policy and performance. World Bank.

Dyfyniad Arddull Chicago

World Bank. World Trade Indicators 2008: Benchmarking Policy and Performance. Washington, D.C.: World Bank, 2008.

Dyfyniad MLA

World Bank. World Trade Indicators 2008: Benchmarking Policy and Performance. World Bank, 2008.

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