Report of Progress 1874-1889. The Geology of Centre County Anonymous Published: 2024-03-05 Total Pages: 494 Get eBook
Geology and Mineral Resources of the Bellefonte Quadrangle, Pennsylvania Charles Butts Published: 1936 Total Pages: 588 Get eBook
Summary Groundwater Resources of Centre County, Pennsylvania Charles R. Wood Published: 1980 Total Pages: 78 Get eBook
Report of Progress 1874-1889. The Geology of Clinton County Anonymous Published: 2024-03-05 Total Pages: 218 Get eBook
Bulletin of the United States Geological Survey Geological Survey (U.S.) Published: 1896 Total Pages: 1092 Get eBook
The Quarterly Journal of the Geological Society of London Geological Society of London Published: 1894 Total Pages: 788 Get eBook
Catalogue and Index of Contributions to North American Geology, 1732-1891 Nelson Horatio Darton Published: 1896 Total Pages: 1060 Get eBook