Gullick, D. L. (1977). Health care: Private choice and public provision.
Dyfyniad Arddull ChicagoGullick, D L. Health Care: Private Choice and Public Provision. 1977.
Dyfyniad MLAGullick, D L. Health Care: Private Choice and Public Provision. 1977.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.