U.S. Environmental Protection Agency. Enhanced coagulation and enhanced precipitative softening guidance manual.
Chicago-Zitierstil (17. Ausg.)U.S. Environmental Protection Agency. Enhanced Coagulation and Enhanced Precipitative Softening Guidance Manual.
MLA-Zitierstil (9. Ausg.)U.S. Environmental Protection Agency. Enhanced Coagulation and Enhanced Precipitative Softening Guidance Manual.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.