http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Overview of groundwater quality in the Piceance Basin, western Colorado, 1946-2009
1 online resource (vi, 204 pages) : illustrations (some color).
Title from title screen (viewed on July 2, 2013).
Includes bibliographical references (pages 50-52).
Scientific investigations report ; 2012-5198