Não informado. (1973). Job safety and health. Occupational Safety and Health Administration.
Cita Chicago Style (17a ed.)Não informado. Job Safety and Health. Washington: Occupational Safety and Health Administration, 1973.
Cita MLA (8a ed.)Não informado. Job Safety and Health. Occupational Safety and Health Administration, 1973.
Precaución: Estas citas no son 100% exactas.