Schiner, G. R., & Gallaher, J. T. (1979). Geology and groundwater resources of western Crawford County, Pennsylvania. Pennsylvania Geological Survey : additional copies, State Book Store.
Chicago Style (17th ed.) CitationSchiner, George R., and John T. Gallaher. Geology and Groundwater Resources of Western Crawford County, Pennsylvania. Harrisburg: Pennsylvania Geological Survey : additional copies, State Book Store, 1979.
MLA (9th ed.) CitationSchiner, George R., and John T. Gallaher. Geology and Groundwater Resources of Western Crawford County, Pennsylvania. Pennsylvania Geological Survey : additional copies, State Book Store, 1979.
Warning: These citations may not always be 100% accurate.