Nutrient sources within the Upper Mississippi River Basin, Minnesota and Wisconsin, 1991-93
By: [Sharon E. Kroening]
Contributors: Geological Survey (U.S.)
Series: USGS fact sheet -- 121-98.; Fact sheet (Geological Survey (U.S.)) -- FS-98-121.
Publisher: U.S. Dept. of the Interior, U.S. Geological Survey
Published: 1998
Place of publication: [Reston, Va.?]
Language: eng
Subjects: Nutrient pollution of water -- Mississippi River Watershed; Water quality -- Mississippi River Watershed; Water -- Pollution -- Mississippi River Watershed
Notes: Caption title.

Shipping list no.: 99-0123-P.

"December 1998"--P. [1]

Includes bibliographical references (p. [4])