United States. Bureau of Mines & Barton, W. R. Mining and mineral operations in the New England and Mid-Atlantic States: A visitor guide.
Chicago Style (17th ed.) CitationUnited States. Bureau of Mines and William R. Barton. Mining and Mineral Operations in the New England and Mid-Atlantic States: A Visitor Guide.
MLA (9th ed.) CitationUnited States. Bureau of Mines and William R. Barton. Mining and Mineral Operations in the New England and Mid-Atlantic States: A Visitor Guide.
Warning: These citations may not always be 100% accurate.