http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Predicting future introductions of nonindigenous species to the Great Lakes
National Center for Environmental Assessment (Washington, D.C.)
1 online resource 138 unnumbered pages : color maps.
National Center for Environmental Assessment, Office of Research and Development, U.S. Environmental Protection Agency.
Title taken from title screen (viewed January 6, 2009).