U.S. Dept. of the Interior, Bureau of Mines,
United States. Bureau of Mines.
Preprint from the ... Bureau of Mines Minerals yearbook. The mineral industry of Rhode Island.
Preprint from the ... Bureau of Mines Minerals yearbook. The mineral industry of Rhode Island.
Preprint from the ... Bureau of Mines Minerals yearbook. Mineral industry of Rhode Island.
Preprint from the ... Bureau of Mines Minerals yearbook. The mineral industry of Rhode Island.
United States. Bureau of Mines.