Searchable catalog of Environmental Protection Agency publications available online or in print from the EPA. This is not a comprehensive index to EPA publications. Use the General Indexes for more complete searches.
Over 1.7 million citations, GeoRef covers North American geology since 1785 and the rest of the world since 1933. Includes 3,000 journals in 40 languages, as well as books, maps, and reports and most U.S. Geological Survey reports.