Crystalline rocks of the Potomac River Gorge near Washington, D.C.
By: by John C. Reed, Jr., and Janice Jolly.
Contributors: Jolly, Janice.; Geological Survey (U.S.)
Series: U.S. Geological Survey professional paper -- 414-H; Shorter contributions to general geology
Publisher: U.S. Government Printing Office
Published: 1963
Place of publication: Washington, DC
Language: eng
Number of pages: 16
Notes: Bibliogr.

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