Occupational safety and health series. (1991). Occupational exposure limits for airborne toxic substances. ILO.
Цитирование в стиле Чикаго (17-е изд.)Occupational safety and health series. Occupational Exposure Limits for Airborne Toxic Substances. Geneva: ILO, 1991.
Цитирование MLA (8-е изд.)Occupational safety and health series. Occupational Exposure Limits for Airborne Toxic Substances. ILO, 1991.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.