External quality-assurance results for the National Atmospheric Deposition Program/National Trends Network during 1991.

Bibliographic Details
Corporate Author:	Geological Survey (U.S.)
Other Authors:	Nilles, Mark A.
Format:	Government Document Book
Language:	English
Published:	Denver, Colo. : U.S. Dept. of the Interior, U.S. Geological Survey : 1995.
Series:	Water-resources investigations report ; 93-4208.
Subjects:	National Atmospheric Deposition Program and National Trends Network (U.S.) Acid deposition > United States. Pollutants > United States.

Evans: US Documents (Annex 5th floor)