APA (7th ed.) Citation

Schweinfurth, S. P. (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.) Citation

Schweinfurth, Stanley P. Geologic 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.) Citation

Schweinfurth, Stanley P. Geologic Map of the West Middletown Quadrangle, and Part of the Bethany Quadrangle, Washington County, Pennsylvania. U.S. Geological Survey, 1975.