U.S. Department of Agriculture1. Historical maps of land use in Puerto Rico in 1951
- Author(s):
- Helmer, Eileen H.; Córdova, Juan R.; Quiñones, Maya; Hubing, Nick
2. Paired quality assurance and operational field data from the northern region of the U.S. Forest Inventory and Analysis program
- Author(s):
- Barnett, Charles J.; Young, Alexander R.
3. Urban land, urban tree cover and urban impervious cover by conterminous United States counties from 2010 to 2060
- Author(s):
- Nowak, David J.; Greenfield, Eric J.
4. Desolation Wilderness: data from 1997-1998 visitor response to fees, fee demonstration project
- Author(s):
- Watson, Alan E.; Puttkammer, Annette; Christensen, Neal A.