1. Historical maps of land use in Puerto Rico in 1951
- Author(s):
- Helmer, Eileen H.; Córdova, Juan R.; Quiñones, Maya; Hubing, Nick
2. Geospatial data for Great Basin perennial montane watersheds - geomorphology, hydrology, vegetation, disturbance and species
- Author(s):
- Board, David I.; Dilts, Thomas E.; Weisberg, Peter J.; Knight, Anna C.; Chambers, Jeanne C.; Lord, Mark L.; Miller, Jerry R.