Water quality of hydrologic bench marks
Subtitle: an indicator of water quality in the natural environment
By: by James E. Biesecker and Donald K. Leifeste.
Contributors: Leifeste, Donald K., joint author.
Series: Conservation networks ; pt. E; Geological Survey circular ; 460-E; Geological Survey circular ;; 460-E.
Publisher: U.S. Dept. of the Interior, Geological Survey
Published: 1975
Place of publication: [Reston, Va.]
Language: eng
Number of pages: 21
Subjects: Water quality -- United States.
Notes: Bibliography: p. 20-21.