Variability of nutrients in streams in part of the Upper Mississippi River Basin, Minnesota and Wisconsin
By: [Sharon Kroening and James Stark].
Contributors: Stark, James R.; National Water-Quality Assessment Program (U.S.); Geological Survey (U.S.)
Series: Fact sheet -- FS-164-97.; Fact sheet (Geological Survey (U.S.) -- FS-97-164.
Publisher: U.S. Geological Survey
Published: 1997
Place of publication: [Mounds View, Minn.?]
Language: eng
Subjects: Nutrient pollution of water -- Mississippi River Watershed.; Nitrogen -- Environmental aspects -- Mississippi River Watershed.; Phosphorus -- Environmental aspects -- Mississippi River Watershed.
Notes: Caption title.

"U.S. Department of the Interior, U.S. Geological Survey"--P. [4].

"In 1994, the U.S. Geological Survey's National Water-Quality Assessment (NAWQA) Program began studies in the Upper Mississippi River Basin."--P. [1].

Includes bibliographical references (p. [4]).