U.S. Environmental Protection Agency. Enhanced coagulation and enhanced precipitative softening guidance manual.
Цитирование в стиле Чикаго (17-е изд.)U.S. Environmental Protection Agency. Enhanced Coagulation and Enhanced Precipitative Softening Guidance Manual.
Цитирование MLA (9-е изд.)U.S. Environmental Protection Agency. Enhanced Coagulation and Enhanced Precipitative Softening Guidance Manual.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.