Mode of access: Internet from the USGS web site. Address as of 8/6/04: http://water.usgs.gov/wid/html/gl.html; current access is available via PURL.
Title from title screen (viewed Aug. 6, 2004).
Authors: Stephen J, Rheaume, S.J. Williams, and C.E. Larsen.
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Electronic reproduction. [S.l.] : HathiTrust Digital Library, 2011. MiAaHDL
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