Variability of nutrients in streams in part of the Upper Mississippi River Basin, Minnesota and Wisconsin
Contributors: Geological Survey (U.S.)
Series: Fact sheet -- FS-164-97; Fact sheet (Geological Survey (U.S.)) -- FS-97-164
Publisher: U.S. Department of the Interior, U.S. Geological Survey
Published: 1997
Place of publication: [Reston, Va.?
Language: eng
Subjects: Nitrates -- Environmental aspects -- Mississippi River Watershed; Water -- Phosphorus content -- Physiological effect -- Mississippi River Watershed; Nutrient pollution of water -- Mississippi River Watershed
Notes: Caption title

Shipping list no.: 98-0118-P

Includes bibliographical references (p. 4)