Gravel and Sand Deposits of Eastern Maryland Nelson Horatio Darton Published: 1939 Total Pages: 504 Get eBook
Geological Survey Professional Paper Geological Survey (U.S.) Published: 1978 Total Pages: 480 Get eBook
Industrial Minerals and Rocks American Institute of Mining, Metallurgical, and Petroleum Engineers Published: 1960 Total Pages: 956 Get eBook
Geological Survey professional paper Geological Survey (U.S.) Published: 1987* Total Pages: Get eBook
Annual Report of the Bureau of Mines Ontario. Bureau of Mines Published: 1913 Total Pages: 486 Get eBook
Annual Report of the Ontario Bureau of Mines Ontario. Bureau of Mines Published: 1918 Total Pages: 586 Get eBook
Annual Report of the Ontario Department of Mines Ontario. Department of Mines Published: 1912 Total Pages: 562 Get eBook
