County-level estimates of nitrogen and phosphorus from commercial fertilizer for the conterminous United States, 1987-2006 /

Bibliographic Details
Main Author:	Gronberg, JoAnn M.
Corporate Authors:	Geological Survey (U.S.), National Water-Quality Assessment Program (U.S.)
Other Authors:	Spahr, Norman E.
Format:	Government Document eBook
Language:	English
Published:	Reston, Va. : U.S. Dept. of the Interior, U.S. Geological Survey, 2012.
Series:	Scientific investigations report ; 2012-5207.
Subjects:	Nitrogen fertilizers > United States. Phosphatic fertilizers > United States.
Online Access:	https://purl.fdlp.gov/GPO/gpo33764

Description
Item Description:	Title from title screen (viewed on Nov. 26, 2012). "National Water-Quality Assessment Program." Electronic resource.
Physical Description:	1 online resource (vi, 20 pages) : color illustrations
Bibliography:	Includes bibliographical references (pages 17-18).