APA (7th ed.) Citation

Root, S. I. (1968). Geology and mineral resources of southeastern Franklin County, Pennsylvania. [Commonwealth of Pennsylvania, Bureau of Topographic and Geologic Survey].

Chicago Style (17th ed.) Citation

Root, Samuel I. Geology and Mineral Resources of Southeastern Franklin County, Pennsylvania. Harrisburg: [Commonwealth of Pennsylvania, Bureau of Topographic and Geologic Survey], 1968.

MLA (9th ed.) Citation

Root, Samuel I. Geology and Mineral Resources of Southeastern Franklin County, Pennsylvania. [Commonwealth of Pennsylvania, Bureau of Topographic and Geologic Survey], 1968.