Eaton, A. D., Clesceri, L. S., Greenberg, A. E., Franson, M. A. H., Greenberg, A. E., & Franson, M. A. H. (1995). Standard methods for the examination of water and wastewater (19th ed.). Washington, DC: American Public Health Association.

Eaton, Andrew D., Lenore S. Clesceri, Arnold E. Greenberg, M. A. H. Franson, Arlond E. Greenberg, and Mary Ann H. Franson. Standard Methods for the Examination of Water and Wastewater. 19th ed. Washington, DC: American Public Health Association, 1995.

Eaton, Andrew D., et al. Standard Methods for the Examination of Water and Wastewater. 19th ed. Washington, DC: American Public Health Association, 1995.