1. Information circular Author/Creator: Pennsylvania. Bureau of Topographic and Geologic Survey Publication/Creation: [Harrisburg] : Dept. of Environmental Resources, Bureau of Topographic and Geologic Survey, 1951- Resource Type: Journal, Newspaper or Serial Access & Availability: Loading
2. Special bulletin - Commonwealth of Pennsylvania, Department of Internal Affairs, Topographic and Geologic Survey Author/Creator: Pennsylvania. Bureau of Topographic and Geologic Survey Publication/Creation: Harrisburg : [Commonwealth of Pennsylvania, Dept. of Internal Affairs, Topographic and Geologic Survey], 1944- Resource Type: Journal, Newspaper or Serial Access & Availability: Loading
3. Pennsylvania geology Publication/Creation: [Harrisburg] : [Topographic and Geologic Survey, Dept. of Environmental Resources] Resource Type: Journal, Newspaper or Serial Access & Availability: Loading
4. Environmental geology report Publication/Creation: Harrisburg [Pa.] : Dept. of Environmental Resources, Office of Resources Management, Bureau of Topographic and Geologic Survey, 1982- Resource Type: Journal, Newspaper or Serial Access & Availability: Loading
5. Progress report Publication/Creation: Harrisburg : Commonwealth of Pennsylvania, Dept. of Environmental Resources, Office of Resources Management, Bureau of Topographic and Geologic Survey Resource Type: Journal, Newspaper or Serial Access & Availability: Loading
6. Bulletin ... Author/Creator: Pennsylvania. Bureau of Topographic and Geologic Survey Publication/Creation: Harrisburg : [publisher not identified], 19. Resource Type: Journal, Newspaper or Serial Access & Availability: Loading
7. Pennsylvania geology Publication/Creation: [Harrisburg] : [Topographic and Geologic Survey, Dept. of Environmental Resources] Resource Type: Journal, Newspaper or Serial Access & Availability: Loading
8. Educational series Publication/Creation: [Harrisburg, Pa.] : Commonwealth of Pennsylvania, Dept. of Internal Affairs, Topographic and Geologic Survey, [1962]- Resource Type: Journal, Newspaper or Serial Access & Availability: Loading
9. Bulletin EG. Publication/Creation: Harrisburg [Pa.] : Commonwealth of Pennsylvania, Dept. of Environmental Resources, Bureau of Topographic & Geologic Survey, 1972 Resource Type: Journal, Newspaper or Serial Access & Availability: Loading
10. Atlas Publication/Creation: Harrisburg, Pa. : Commonwealth of Pennsylvania, Dept. of Environmental Resources, Bureau of Topographic and Geologic Survey Resource Type: Journal, Newspaper or Serial Access & Availability: Loading