http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
National Conference on Less Costly Wastewater Treatment Systems for Small Communities, U.S. Environmental Protection Agency, Date: April 12, 13, and 14, 1977, Location: Reston, Virginia
National Conference on Less Costly Wastewater Treatment Systems for Small Communities (1977 : Reston, Va.)
Environmental Research Information Center
Municipal Environmental Research Laboratory
Co-sponsored by the following EPA offices : Environmental Research Information Center (Technology Transfer), Cincinnati, Ohio; the Office of Water Program Operations, Washington, D.C. and the Municipal Environmental Research Laboratory, Cincinnati, Ohio.