Authors
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| Nickname | Name | Country | Action |
|---|---|---|---|
| USEPA | U.S. Environmental Protection Agency | US | Browse Items |
| UW DE | University of Wisconsin Division of Extension | US | Browse Items |
| UW-Madison | University of Wisconsin Madison | US | Browse Items |
| USDA FS | USDA Forest Service | US | Browse Items |
| UTAP | UtahTechnology Center | US | Browse Items |
| VLR | Vermont Local Roads, Vermont Agency of Transportation | US | Browse Items |
| VISTA | Video Information System Training Association | US | Browse Items |
| VDOT | Virginia Department of Transportation | US | Browse Items |
| WaDOT | Washington State Department of Transportation | US | Browse Items |
| TRAC | Washington State Transportation Center | US | Browse Items |
| WDOT | Wisconsin Department of Transportation | US | Browse Items |
| Wumbus | Wumbus Corporation | US | Browse Items |