• 15 Steenbock Library
• 13 Wisconsin Historical Society Library
• 12 Law Library
• 6 Verona Shelving Facility
• 4 Arboretum Research Library

• 117 Books
• 12 Journals, Magazines, Newspapers
• 1 Microforms
• 1 Videos, Slides, Films

• 66 Native plants for cultivation
• 64 Invasive plants
• 64 Noxious weeds
• 34 Wildlife conservation
• 20 Law and legislation
• 15 Endangered species
• 9 Endangered plants
• 7 Conservation
• 7 Fishes
• 6 Rare plants
• 4 Finance
• 4 Rosaceae
• 4 U.S. Fish and Wildlife Service
• 4 Wild flowers
• 3 Appropriations and expenditures
• 3 Fishery law and legislation
• 3 Habitat
• 2 Asclepiadaceae
• 2 Charitable uses, trusts, and foundations
• 2 Convention on International Trade in Endangered Species of Wild Fauna and Flora (1973 March 3)
• 2 Energy development
• 2 Fish trade
• 2 Giant reed
• 2 Government policy

• 64 Plant Conservation Alliance. Alien Plant Working Group
• 22 Swearingen, Jil M.
• 12 U.S. Fish and Wildlife Service
• 11 Remaley, Tom
• 7 United States
• 5 Benton, Nancy
• 5 United States. Congress. House. Committee on Merchant Marine and Fisheries
• 4 United States. Bureau of Land Management
• 4 United States. Forest Service
• 3 Endangered Species Program (U.S.)
• 3 International Association of Fish and Wildlife Agencies
• 3 Plant Materials Program (U.S.)
• 3 Smithsonian Institution
• 3 United States. Congress. Senate. Committee on Environment and Public Works. Subcommittee on Environmental Protection
• 3 Wieseler, Susan
• 2 Bergmann, Carole
• 2 Center for Plant Conservation (Saint Louis, Mo.)
• 2 Lawlor, Fran
• 2 Lyons, Robert E.
• 2 McLaughlin, Greg
• 2 Muzika, Rose-Marie, 1958-
• 2 Pannill, Philip D.
• 2 Recovery Program (U.S. Fish and Wildlife Service)
• 2 United States. Agricultural Research Service
• 2 United States. Congress. House. Committee on Merchant Marine and Fisheries. Subcommittee on Environment and Natural Resources

• 130 English

• 3 Maine
• 1 California
• 1 North America

• 10 Periodicals
• 2 Juvenile literature
• 1 Directories
• 1 Identification
• 1 Legislative hearings
• 1 Legislative materials
• 1 Pictorial works
• 1 Posters
• 1 Television news programs

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