Huckell, B. B. 1984 The Paleo-Indian and Archaic occupation of the Tucson Basin: an overview. The Kiva 49:133-145.
Mabry, J. B. (editor) 2008 Las Capas: Early Irrigation and Sedentism in a Southwestern Floodplain. Anthropological Papers No. 28. Center for Desert Archaeology, Tucson.