Drager, N., & Vieira, C. (2002). Trade in health services global, regional, and country perspectives (Primera edición.). Pan American Health Organization.
Dyfyniad Arddull ChicagoDrager, Nick, and Cásar Vieira. Trade in Health Services Global, Regional, and Country Perspectives. Primera edición. Washington: Pan American Health Organization, 2002.
Dyfyniad MLADrager, Nick, and Cásar Vieira. Trade in Health Services Global, Regional, and Country Perspectives. Primera edición. Pan American Health Organization, 2002.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.