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Author/Creator
- United States. Natural Resources Conservation Service39
- United States. National Park Service9
- Natural Resources Defense Council8
- United States. Department of the Interior8
- Conservation Foundation6
- Take Pride in America6
- Canada. Parliament. House of Commons. Standing Committee on Environment and Sustainable Development5
- International Union for Conservation of Nature and Natural Resources5
- Louisiana. Dept. of Conservation5
- United States. Office of the Federal Register5
- Canada. Parliament. House of Commons. Standing Committee on Natural Resources4
- Iowa State Conservation Commission4
- National Conservation Training Center (U.S. Fish and Wildlife Service)4
- National Wildlife Federation4
- Sierra Club4
- United States. Bureau of Land Management4
- West Virginia. Dept. of Natural Resources4
- Wisconsin. Dept. of Natural Resources4
- Alabama. Dept. of Conservation3
- Alabama. Dept. of Game and Fisheries3