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Dyfyniad Arddull ChicagoThe World Bank, Maurice Schiff, and Caglar Ozden. International Migration, Remittances and The Brain Drain. Washington, D.C.: The World Bank, 2006.
Dyfyniad MLAThe World Bank, et al. International Migration, Remittances and The Brain Drain. The World Bank, 2006.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.