Não informado. (1973). Job safety and health. Occupational Safety and Health Administration.
Chicagoスタイル(17版)引用形式Não informado. Job Safety and Health. Washington: Occupational Safety and Health Administration, 1973.
MLA(8版)引用形式Não informado. Job Safety and Health. Occupational Safety and Health Administration, 1973.
警告: この引用は必ずしも正確ではありません.