Não informado. (1974). International Journal of Occupational Health and Safety. Medical Publications.
Chicagoスタイル(17版)引用形式Não informado. International Journal of Occupational Health and Safety. Northbrook, Ill: Medical Publications, 1974.
MLA(8版)引用形式Não informado. International Journal of Occupational Health and Safety. Medical Publications, 1974.
警告: この引用は必ずしも正確ではありません.