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Publisher
- Gfk MACON Company247
- U.S. Geological Survey4
- California. Department of Water Resources3
- Geological Survey (U.S.)3
- Egypt. Jihāz al-Markazī lil-Taʻbiʼah al-ʻĀmmah wa-al-Iḥṣāʼ2
- International Steering Committee for Global Mapping2
- LeadDog Consulting, LLC2
- Bay Area Open Space Council1
- United States. Bureau of Transportation Statistics1
- World Resources Institute1