http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Environmental factors used to subdivide the western Lake Michigan drainages into relatively homogeneous units for water-quality site selection
4 unnumbered pages : color maps ; 28 cm.
"National Water-Quality assessment"--P. [1].
Includes bibliographical references (page [4]).
Fact sheet (Geological Survey (U.S.)) ; FS-95-200