Shuster, E. T. (1979). Groundwater resources of the DuBois area, Clearfield and Jefferson Counties, Pennsylvania. Commonwealth of Pa., Dept. of Environmental Resources, Topographic and Geologic Survey.
Chicago Style (17th ed.) CitationShuster, Evan T. Groundwater Resources of the DuBois Area, Clearfield and Jefferson Counties, Pennsylvania. [Harrisburg]: Commonwealth of Pa., Dept. of Environmental Resources, Topographic and Geologic Survey, 1979.
MLA (9th ed.) CitationShuster, Evan T. Groundwater Resources of the DuBois Area, Clearfield and Jefferson Counties, Pennsylvania. Commonwealth of Pa., Dept. of Environmental Resources, Topographic and Geologic Survey, 1979.
Warning: These citations may not always be 100% accurate.