Groundwater resources of the Berwick-Bloomsburg-Danville area, east-central Pennsylvania / by John H. Williams and David A. Eckhardt ; prepared by the United States Geological Survey, Water Resources Division, in cooperation with the Pennsylvania Geological Survey

Chicago citation style
Williams, John H. (John Herbert), 1954. Groundwater resources of the Berwick-Bloomsburg-Danville area, east-central Pennsylvania / by John H. Williams and David A. Eckhardt ; prepared by the United States Geological Survey, Water Resources Division, in cooperation with the Pennsylvania Geological Survey. Retrieved from the Digital Public Library of America, https://archive.org/details/groundwaterresou00will. (Accessed December 13, 2018.)
APA citation style
Williams, John H. (John Herbert), 1954, Groundwater resources of the Berwick-Bloomsburg-Danville area, east-central Pennsylvania / by John H. Williams and David A. Eckhardt ; prepared by the United States Geological Survey, Water Resources Division, in cooperation with the Pennsylvania Geological Survey. Retrieved from the Digital Public Library of America, https://archive.org/details/groundwaterresou00will
MLA citation style
Williams, John H. (John Herbert), 1954. Retrieved from the Digital Public Library of America <https://archive.org/details/groundwaterresou00will>.
Note: These citations are programmatically generated and may be incomplete.