1. Balice, R G., S. G. Ferran, and T. S. Fcnot 1997 Preliminary Vegetation and Land Cover Classification for the Los Alamos Region. Los Ala-mos National Laboratory, Los Alamos.
2. Testing the Hypothesis of a Worldwide Neolithic Demographic Transition
3. Cordell, L. S. 1979 Cultural Resources Overview: Middle Rio Grande Valley, New Mexico. USDA Forest Ser-vice, Albuquerque.