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- United States82
- Geological Survey (U.S.)73
- Organisation for Economic Co-operation and Development44
- National Science Foundation (U.S.)38
- Food and Agriculture Organization of the United Nations35
- Unesco34
- United States. Forest Service26
- United States. Congress. House. Committee on Science, Space, and Technology (2011), author23
- National Academy of Sciences (U.S.)21
- Forest Products Laboratory (U.S.)19
- International Union of Forestry Research Organizations19
- Rocky Mountain Forest and Range Experiment Station (Fort Collins, Colo.)19
- United States. Congress. House. Committee on Science, Space, and Technology (2011). Subcommittee on Energy, author19
- Pacific Southwest Forest and Range Experiment Station (Berkeley, Calif.)18
- Woods Hole Oceanographic Institution17
- International Rice Research Institute16
- National Research Council (U.S.)16
- United States. Congress. House. Committee on Science, Space, and Technology (2011). Subcommittee on Research and Technology, author15
- Denzin, Norman K.14
- Organisation for Economic Co-operation and Development. Development Centre14