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Creator
- University of Arizona. Library32
- National Climatic Data Center (U.S.)29
- Arizona. State Land Department19
- Arizona NEMO10
- Arizona. Department of Health Services10
- Arizona. Department of Public Safety. Research and Planning8
- Arizona. Department of Water Resources7
- DTM Consulting, Inc.4
- Robert de Vaugondy3
- United States. Geological Survey3
- Arizona Geological Survey2
- Jiang Wu, University of Arizona2
- Jim Malusa, USGS2
- Nicholas Sanson2
- Stephen P. Scheidt and Christopher W. Hamilton2
- US Environmental Protection Agency2
- United State. Geological Survey2
- United States. Department of Agriculture.2
- United States. Environmental Protection Agency.2
- University of Arizona. Cooperative Extension2