Não informado. (1985). National safety and health news. National Safety Council.
Chicagoスタイル(17版)引用形式Não informado. National Safety and Health News. Chicago, Ill: National Safety Council, 1985.
MLA(8版)引用形式Não informado. National Safety and Health News. National Safety Council, 1985.
警告: この引用は必ずしも正確ではありません.