United States. Bureau of Mines. (1936). Quarrying and crushing methods and costs at Avon Mountain trap rock quarry of Atlas Sand, Gravel and Stone Co., West Hartford, Conn. [s.n.].
Chicago Style (17th ed.) CitationUnited States. Bureau of Mines. Quarrying and Crushing Methods and Costs at Avon Mountain Trap Rock Quarry of Atlas Sand, Gravel and Stone Co., West Hartford, Conn. [Washington]: [s.n.], 1936.
MLA (9th ed.) CitationUnited States. Bureau of Mines. Quarrying and Crushing Methods and Costs at Avon Mountain Trap Rock Quarry of Atlas Sand, Gravel and Stone Co., West Hartford, Conn. [s.n.], 1936.
Warning: These citations may not always be 100% accurate.