APA (7th ed.) Citation

Pennsylvania. Topographic and Geological Survey Commission. (1908). Topographic and geological survey of Pennsylvania. [Topographic and Geologic Survey Commission of Pennsylvania].

Chicago Style (17th ed.) Citation

Pennsylvania. Topographic and Geological Survey Commission. Topographic and Geological Survey of Pennsylvania. [Place of publication not identified]: [Topographic and Geologic Survey Commission of Pennsylvania], 1908.

MLA (9th ed.) Citation

Pennsylvania. Topographic and Geological Survey Commission. Topographic and Geological Survey of Pennsylvania. [Topographic and Geologic Survey Commission of Pennsylvania], 1908.