Não informado. (1949). Occupational Health. Royal College of Nursing Society of Occupational Health Nursing.
Chicago (17e ed.) BronvermeldingNão informado. Occupational Health. London: Royal College of Nursing Society of Occupational Health Nursing, 1949.
MLA (8e ed.) BronvermeldingNão informado. Occupational Health. Royal College of Nursing Society of Occupational Health Nursing, 1949.
Let op: Deze citaties zijn niet altijd 100% accuraat.