(1975). Geologic map of the West Middletown quadrangle, and part of the Bethany quadrangle, Washington County, Pennsylvania. U.S. Geological Survey.
Chicago Style (17th ed.) CitationGeologic Map of the West Middletown Quadrangle, and Part of the Bethany Quadrangle, Washington County, Pennsylvania. Reston, VA: U.S. Geological Survey, 1975.
MLA (9th ed.) CitationGeologic Map of the West Middletown Quadrangle, and Part of the Bethany Quadrangle, Washington County, Pennsylvania. U.S. Geological Survey, 1975.
Warning: These citations may not always be 100% accurate.