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Author/Creator
- Geological Survey (U.S.). Water Resources Division72
- United States. Soil Conservation Service34
- Water Survey of Canada24
- American Anthropological Association21
- Geological Survey (U.S.)21
- Taylor & Francis18
- Pneu Michelin (Firm)16
- American Geographical Society of New York15
- Centre national de la recherche scientifique (France)14
- Vale Zines Collection (Beinecke Rare Book and Manuscript Library)14
- National Geographic Society (U.S.)13
- Royal Geographical Society (Great Britain)13
- Switzerland. Bundesamt für Statistik13
- United States. National Oceanic and Atmospheric Administration12
- Scripps Institution of Oceanography11
- U.S. Coast and Geodetic Survey11
- Association of American Geographers10
- International Work Group for Indigenous Affairs10
- United Nations Environment Programme9
- United States. National Weather Service9