Geohydrologic reconnaissance of the upper Potomac River basin
By: by Frank W. Trainer and Frank A. Watkins, Jr.
Contributors: Watkins, Frank A. 1929- joint author.
Series: Geological Survey water-supply paper ;; 2035
Publisher: U.S. Govt. Print. Off.
Published: 1975
Place of publication: Washington
Language: eng
Number of pages: 68
Subjects: Groundwater -- Potomac River Watershed.
Notes: Bibliography: p. 66-68.
Part of illustrative matter in pocket.