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.
Цитирование в стиле Чикаго (17-е изд.)Philippines. 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.
Цитирование MLA (9-е изд.)Philippines. 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.