(1989). Air contaminants: Permissible exposure limits (Title 29 Code of federal regulations, part 1910.1000).
Chicagoスタイル(17版)引用形式Air Contaminants: Permissible Exposure Limits (Title 29 Code of Federal Regulations, Part 1910.1000). 1989.
MLA(9版)引用形式Air Contaminants: Permissible Exposure Limits (Title 29 Code of Federal Regulations, Part 1910.1000). 1989.
警告: この引用は必ずしも正確ではありません.