Não informado. (1980). Nursing & Health Care. National League for Nursing.
Chicago (17e ed.) BronvermeldingNão informado. Nursing & Health Care. New York: National League for Nursing, 1980.
MLA (8e ed.) BronvermeldingNão informado. Nursing & Health Care. National League for Nursing, 1980.
Let op: Deze citaties zijn niet altijd 100% accuraat.