Burgess, A. W. (1978). Nursing: Levels of health intervention. Prentice-Hill.
Dyfyniad Arddull ChicagoBurgess, Ann Wolbert. Nursing: Levels of Health Intervention. London: Prentice-Hill, 1978.
Dyfyniad MLABurgess, Ann Wolbert. Nursing: Levels of Health Intervention. Prentice-Hill, 1978.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.