Methodology to derive water-quality trends for use by the National water summary program of the U.S. Geological Survey
By: by Kenneth J. Lanfear and Richard B. Alexander
Contributors: Alexander, Richard; Geological Survey (U.S.)
Series: U.S. Geological Survey open-file report -- 90-359
Publisher: Dept. of the Interior, U.S. Geological Survey; Books and Open File Reports Section, distributor
Published: 1990
Place of publication: Reston, Va; Denver, CO
Language: eng
Format: Microform
Number of pages: 10
Subjects: Water quality -- United States
Other titles: National water summary program of the U.S. Geological Survey
Notes: Distributed to depository libraries in microfiche

Includes bibliographical references (p. 10)

Microfiche. [Denver, Colo. : U.S. Geological Survey, 1993] 1 microfiche : negative