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KU Leuven (6)

VDIC (6)

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book (6)

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English (6)

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1992 (1)

1990 (2)

1989 (2)

1988 (1)

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Book

Programs and analytical methods for the U.S. Geological Survey acid rain quality-assurance project
Authors: See, Randolph B. --- Geological Survey (U.S.)
Year: 1990 Publisher: Denver, Colorado : U.S. Geological Survey,

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Acid rain --- Acid deposition --- Government policy --- Study and teaching --- Standards --- Geological Survey (U.S.) --- United States.

Book

External quality-assurance results for the National Atmospheric Deposition Program and the National Trends Network during 1986
Authors: See, Randolph B. --- Schroder, L. J. --- Willoughby, Timothy C. --- Geological Survey (U.S.)
Year: 1988 Publisher: Denver, Colorado : U.S. Geological Survey,

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National Atmospheric Deposition Program and National Trends Network (U.S.) --- National Atmospheric Deposition Program and National Trends Network (U.S.) --- Quality control.

Book

External quality-assurance results for the National Atmospheric Deposition Program and the National Trends Network during 1987
Authors: See, Randolph B. --- Schroder, L. J. --- Willoughby, Timothy C. --- Geological Survey (U.S.)
Year: 1989 Publisher: Denver, Colorado : U.S. Geological Survey,

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Quality assurance. --- Acid deposition --- Testing. --- National Atmospheric Deposition Program and National Trends Network (U.S.) --- United States.

Book

Stability of nitrate-ion concentrations in simulated deposition samples used for quality-assurance activities by the U.S. Geological Survey
Authors: Willoughby, Timothy C. --- See, Randolph B. --- Schroder, L. J. --- Geological Survey (U.S.)
Year: 1989 Publisher: Denver, Colorado : U.S. Geological Survey,

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Acid deposition --- Nitrification --- Sampling --- Quality control. --- Testing. --- United States.

Book

Detailed study of selenium in soil, representative plants, water, bottom sediment, and biota in the Kendrick Reclamation Project area, Wyoming, 1988-90
Authors: See, Randolph B. --- Geological Survey (U.S.) --- U.S. Fish and Wildlife Service. --- United States. --- Wyoming.
Year: 1992 Publisher: Cheyenne, Wyoming : U.S. Geological Survey,

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Selenium in agriculture --- Soils --- Irrigation --- Selenium content. --- Environmental aspects --- Wyoming

Book

External quality-assurance results for the National Atmospheric Deposition Program/National Trends Network during 1988
Authors: See, Randolph B. --- Gordon, J. D. --- Willoughby, Timothy C. --- Geological Survey (U.S.)
Year: 1990 Publisher: Denver, Colorado : U.S. Geological Survey,

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Keywords
Acid deposition --- Testing. --- National Atmospheric Deposition Program and National Trends Network (U.S.) --- National Atmospheric Deposition Program and National Trends Network (U.S.) --- United States.

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