American Public Health Association, American Water Works Association, Water Environment Federation, Baird, R., Eaton, A. D., Rice, E. W., & Bridgewater, L. (2017). Standard methods for the examination of water and wastewater (23rd edition.). American Public Health Association.
Chicago (17e ed.) BronvermeldingAmerican Public Health Association, American Water Works Association, Water Environment Federation, Rodger Baird, Andrew D. Eaton, Eugene W. Rice, en Laura Bridgewater. Standard Methods for the Examination of Water and Wastewater. 23rd edition. Washington, D.C: American Public Health Association, 2017.
MLA (9e ed.) BronvermeldingAmerican Public Health Association, et al. Standard Methods for the Examination of Water and Wastewater. 23rd edition. American Public Health Association, 2017.