Prehistoric cultural development in central ArizonaPatricia M. Spoerl, George J. Gumerman, Vorsila L. Bohrer · First published 1984Open the Tome
Cultural resources on the Lincoln National ForestPatricia M. Spoerl, Julio L. Betancourt, Joseph A. Tainter, Jeff Boyer, United States. Forest Service. Southwestern Region · First published 1981Open the Tome
