APA (7th ed.) Citation

United States. Bureau of Mines & Woodbridge, D. E. (1913). Mine-accident prevention at Lake Superior iron mines. U.S. GPO.

Chicago Style (17th ed.) Citation

United States. Bureau of Mines and Dwight E. Woodbridge. Mine-accident Prevention at Lake Superior Iron Mines. Washington: U.S. GPO, 1913.

MLA (9th ed.) Citation

United States. Bureau of Mines and Dwight E. Woodbridge. Mine-accident Prevention at Lake Superior Iron Mines. U.S. GPO, 1913.