Griffin, C. C. (1988). User charges for health care in principle and practice. World Bank.
Dyfyniad Arddull ChicagoGriffin, Charles C. User Charges for Health Care in Principle and Practice. Washington: World Bank, 1988.
Dyfyniad MLAGriffin, Charles C. User Charges for Health Care in Principle and Practice. World Bank, 1988.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.