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- Geological Survey (U.S.)53
- Louisiana Geological Survey38
- Louisiana. Dept. of Conservation16
- Louisiana Wild Life and Fisheries Commission12
- United States11
- Howe, Henry V. (Henry Van Wagenen), 1896-9
- U.S. Coast and Geodetic Survey, issuing body9
- Harris, Gilbert D. (Gilbert Dennison), 1864-19528
- Louisiana6
- Louisiana. Forestry Commission6
- Rand McNally and Company6
- Maher, John C. (John Charles), 1914-5
- Veatch, A. C. (Arthur Clifford), 1878-19385
- Demcheck, Dennis K.4
- Hardtner, Henry E.4
- Louisiana. Dept. of Public Works4
- Lowery, George H. (George Hines), 1913-4
- Moe, Christine4
- United States. Congress. Senate. Committee on Environment and Public Works, author4
- United States. Congress. Senate. Committee on Small Business and Entrepreneurship, author4