External quality-assurance results for the National Atmospheric Deposition Program/National Trends Network during 1990
By: by Mark A. Nilles ... [et al.].
Contributors: Nilles, Mark A.; Geological Survey (U.S.)
Series: Water-resources investigations report -- 92-4101.
Publisher: U.S. Dept. of the Interior, U.S. Geological Survey; Books and Open-File Reports Section [distributor]
Published: 1993
Place of publication: Denver, Colo
Language: eng
Number of pages: 33
Subjects: National Atmospheric Deposition Program and National Trends Network (U.S.); Acid deposition -- United States.
Other titles: External quality assurance results for the National Atmospheric Deposition Program/National Trends Network during 1990.
Notes: Shipping list no.: 93-0500-P.

Includes bibliographical references (p. 32-33).