McManus, B. C. (1992). Altitude and configuration of the potentiometric surface in the crystalline and metasedimentary rocks, northeastern Chester County, Pennsylvania, May through October 1990. U.S. Department of the Interior, U.S. Geological Survey.
Chicago Style (17th ed.) CitationMcManus, B. Craig. Altitude and Configuration of the Potentiometric Surface in the Crystalline and Metasedimentary Rocks, Northeastern Chester County, Pennsylvania, May Through October 1990. [Lemoyne, Pa.]: U.S. Department of the Interior, U.S. Geological Survey, 1992.
MLA (9th ed.) CitationMcManus, B. Craig. Altitude and Configuration of the Potentiometric Surface in the Crystalline and Metasedimentary Rocks, Northeastern Chester County, Pennsylvania, May Through October 1990. U.S. Department of the Interior, U.S. Geological Survey, 1992.