Heim, N. E., Burris, B. E., & Potter, L. (1979). Chemical aids manual for wastewater treatment facilities. U.S. Environmental Protection Agency, Office of Water Program Operations.
Chicago-Zitierstil (17. Ausg.)Heim, Nancy E., Bruce E. Burris, und Lehn Potter. Chemical Aids Manual for Wastewater Treatment Facilities. Washington D.C.: U.S. Environmental Protection Agency, Office of Water Program Operations, 1979.
MLA-Zitierstil (8. Ausg.)Heim, Nancy E., et al. Chemical Aids Manual for Wastewater Treatment Facilities. U.S. Environmental Protection Agency, Office of Water Program Operations, 1979.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.