11. DISTRIB-II: habitat suitability of eastern United States trees
- Author(s):
- Peters, Matthew P.; Iverson, Louis R.; Prasad, Anantha M.; Matthews, Stephen N.
12. Social conditions and preference data for visitors to three wilderness areas in the southern United States in 1989-1990
- Author(s):
- Watson, Alan E.; Daigle, John J.; Niccolucci, Michael J.
13. Campsite condition data for four South-Central Wildernesses in Arkansas, Illinois, and Missouri
- Author(s):
- Cole, David N.