APA (7th ed.) Citation

Glass, G. B. (1974). Geology and mineral resources of the Philipsburg 7 1/2-minute quadrangle, Pennsylvania. [Commonwealth of Pennsylvania, Dept. of Environmental Resources, Bureau of Topographic and Geologic Survey].

Chicago Style (17th ed.) Citation

Glass, Gary B. Geology and Mineral Resources of the Philipsburg 7 1/2-minute Quadrangle, Pennsylvania. Harrisburg: [Commonwealth of Pennsylvania, Dept. of Environmental Resources, Bureau of Topographic and Geologic Survey], 1974.

MLA (9th ed.) Citation

Glass, Gary B. Geology and Mineral Resources of the Philipsburg 7 1/2-minute Quadrangle, Pennsylvania. [Commonwealth of Pennsylvania, Dept. of Environmental Resources, Bureau of Topographic and Geologic Survey], 1974.