5. Bibliography
THERIAULT, E.J. & H.H. WAGENHALS. 1923. Studies of representative sewage plants. Pub. Health
Bull. No. 132.
U.S. ENVIRONMENTAL PROTECTION AGENCY. 1979. Methods for Chemical Analysis of Water
and Wastes. Publ. 600/4-79-020, rev. Mar. 1983. Environmental Monitoring and Support
Lab., U.S. Environmental Protection Agency, Cincinnati, Ohio.