Philippines. Bureau of Working Conditions. Occupational Safety and Health Division. (1990). Primer on the occupational safety and health standards: As amended. Health and Safety, Occupational Safety and Health Division, Bureau of Working Conditions, Dept. of Labor and Employment.
Chicago Style (17th ed.) CitationPhilippines. Bureau of Working Conditions. Occupational Safety and Health Division. Primer on the Occupational Safety and Health Standards: As Amended. Manila: Health and Safety, Occupational Safety and Health Division, Bureau of Working Conditions, Dept. of Labor and Employment, 1990.
MLA (9th ed.) CitationPhilippines. Bureau of Working Conditions. Occupational Safety and Health Division. Primer on the Occupational Safety and Health Standards: As Amended. Health and Safety, Occupational Safety and Health Division, Bureau of Working Conditions, Dept. of Labor and Employment, 1990.