prepared by Office of Water Programs, College of Engineering and Computer Science, California State University, Sacramento, in cooperation with the California Water Environment Association ; Kenneth D. Kerri [and others]
by P. Levins ... [and others] ; prepared for U.S. Environmental Protection Agency, Office of Water Planning and Standards, Monitoring and Data Support Division
prepared by California State University, Sacramento, College of Engineering and Computer Science, Office of Water Programs in cooperation with the California Water Environment Association for the U.S Environmental Protection Agency, Office of Water Program Operations, Municipal Permits and Operations Division ; Kenneth D. Kerri ... [and others]