Dollar, D., & Kraay, A. (2001). Institutions, trade, and growth. World Bank.
Dyfyniad Arddull ChicagoDollar, David, and Aart Kraay. Institutions, Trade, and Growth. Washington, D.C: World Bank, 2001.
Dyfyniad MLADollar, David, and Aart Kraay. Institutions, Trade, and Growth. World Bank, 2001.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.