Pesticides in streams of the United States : initial results from the National Water-Quality Assessment Program

by Larson, Steven J.
Published: U.S. Dept. of the Interior, U.S. Geological Survey ; Branch of Information Services [distributor], 1999

Laboratory and quality assurance protocols for the analysis of herbicides in ground water from the Management Systems Evaluation Area, Princeton, Minnesota

by Larson, Steven J.
Published: U.S. Dept. of the Interior, U.S. Geological Survey ; Earth Science Information Center, Open-File Reports Section [distributor], 1996

Development and application of watershed regressions for pesticides (WARP) for estimating atrazine concentration distributions in streams

by Larson, Steven J.
Published: U.S. Dept. of the Interior, U.S. Geological Survey ; U.S. Geological Survey, Information Services [distributor], 2004

Pesticides in streams of the United States-initial results from the National Water-Quality Assessment Program

by Larson, Steven J.,
Published: U.S. Geological Survey, 1999

Evaluation of selected information on splitting devices for water samples

by Capel, Paul D.
Published: U.S. Dept. of the Interior, U.S. Geological Survey ; For sale by the U.S. Geological Survey, Earth Science Information Center, Open-File Reports Section, 1996

Evaluation of selected information on splitting devices for water samples

by Capel, Paul D.,
Published: U.S. Geological Survey, 1996

Selected data from field studies of pesticide runoff to surface waters

by Capel, Paul D.,
Published: U.S. Department of the Interior, U.S. Geological Survey, 2001

Selected data from field studies of pesticide runoff to surface waters

by Capel, Paul D.
Published: U.S. Dept. of the Interior, U.S. Geological Survey ; Branch of Information Services [distributor], 2001