Geology of the Lewistown Coal Field, Montana William R. Calvert Published: 1909 Total Pages: 556 Get eBook
Bulletin of the United States Geological Survey Geological Survey (U.S.) Published: 1909 Total Pages: 504 Get eBook
Contributions to Economic Geology, 1907: Part II.-Coal and Lignite Marius Robinson Campbell Published: 1909 Total Pages: 512 Get eBook
Contributions to Economic Geology, 1957 Geological Survey (U.S.) Published: 1960 Total Pages: 222 Get eBook
Mineral Resources of the United States, Calendar Year 1910 Geological Survey (U.S.) Published: 1911 Total Pages: 1056 Get eBook
Reconnaissance of the Geology and Mineral Resources of Prince William Sound, Alaska Ulysses Sherman Grant Published: 1911 Total Pages: 564 Get eBook
