(1989). Air contaminants: Permissible exposure limits (Title 29 Code of federal regulations, part 1910.1000).
Čikaški stil citiranja (17. izdanje)Air Contaminants: Permissible Exposure Limits (Title 29 Code of Federal Regulations, Part 1910.1000). 1989.
MLA način citiranja (9. izdanje)Air Contaminants: Permissible Exposure Limits (Title 29 Code of Federal Regulations, Part 1910.1000). 1989.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.