United States. Congress. House, Geological Survey (U.S.), Brooks, A. H., & La Croix, M. F. (1920). Iron and associated industries of Lorraine, the Sarre District, Luxemburg, and Belgium, by Alfred H. Brooks and Morris F. La Croix.[U.S. Geological Survey Bulletin 703.].
Chicago Style (17th ed.) CitationUnited States. Congress. House, Geological Survey (U.S.), Alfred H. Brooks, and Morris F. La Croix. Iron and Associated Industries of Lorraine, the Sarre District, Luxemburg, and Belgium, by Alfred H. Brooks and Morris F. La Croix.[U.S. Geological Survey Bulletin 703.]. Washington, DC, 1920.
MLA (8th ed.) CitationUnited States. Congress. House, et al. Iron and Associated Industries of Lorraine, the Sarre District, Luxemburg, and Belgium, by Alfred H. Brooks and Morris F. La Croix.[U.S. Geological Survey Bulletin 703.]. 1920.