Não informado. (1949). Occupational Health. Royal College of Nursing Society of Occupational Health Nursing.
Chicagoスタイル(17版)引用形式Não informado. Occupational Health. London: Royal College of Nursing Society of Occupational Health Nursing, 1949.
MLA(8版)引用形式Não informado. Occupational Health. Royal College of Nursing Society of Occupational Health Nursing, 1949.
警告: この引用は必ずしも正確ではありません.