Quality of surface waters of the United States, 1966
Subtitle: Parts 5 and 6.  Hudson Bay and Upper Mississippi River Basins, and Missouri River Basin.
Series: U.S. Geological Survey water-supply paper -- 1993
Publisher: U.S. Government Printing Office
Published: 1971
Place of publication: Washington, DC
Language: eng
Number of pages: 666
Subjects: Water-supply -- United States.; Water -- Composition.
Notes: Prepared in cooperation with the States of Illinois, Indiana, Iowa, Kansas, Minnesota, Missouri, Montana, South Dakota, Wisconsin, Wyoming, and with other agencies.

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