APA (7th ed.) Citation

Williams, J. H. (1991). Tributary-stream infiltration in Marsh Creek Valley, north-central Pennsylvania. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Williams, John H. Tributary-stream Infiltration in Marsh Creek Valley, North-central Pennsylvania. Albany, New York: U.S. Geological Survey, 1991.

MLA (9th ed.) Citation

Williams, John H. Tributary-stream Infiltration in Marsh Creek Valley, North-central Pennsylvania. U.S. Geological Survey, 1991.