Nutrients in streams and rivers across the nation, 1992-2001
By: by David K. Mueller and Norman E. Spahr.
Contributors: Spahr, Norman E.; National Water-Quality Assessment Program (U.S.); Geological Survey (U.S.)
Series: Scientific investigations report -- 2006-5107
Publisher: U.S. Dept. of the Interior, U.S. Geological Survey
Published: 2006
Place of publication: Reston, Va
Language: eng
Number of pages: 44
Subjects: Nutrient pollution of water -- United States
Notes: "National Water-Quality Assessment Program."

Includes bibliographical references (p. 41-44).