Title from PDF title screen (viewed on Mar. 17, 2008).
At head of title on HTML title screen: U.S. Department of the Interior, U.S. Geological Survey, Michigan Water Science Center.
Includes bibliographical references.
Mode of access: Internet via the USGS web site. Address as of 07/09/08: http://pubs.usgs.gov/of/2008/1016/pdf/ofr2008-1016.pdf; current access available via PURL.