1. Adavasio, J., 2002. The First Americans: In Search of Archaeology's Greatest Mystery. Random House, New York pp. 328.
2. Agenbroad, L.D., 1967. Cenozoic stratigraphy and paleohydrology of the Redington–San Manuel Area, San Pedro Valley, Arizona. Unpublished Ph.D. Dissertation, University of Arizona, Tucson, pp. 111.
3. Excavations at the Hot Springs Mammoth Site;Agenbroad;Transactions of the Nebraska Academy of Sciences,1978
4. New World mammoth distribution;Agenbroad,1984
5. Agenbroad, L.D., 1987. Clovis people: the human factor in the Pleistocene megafaunal extinction equation. In: Carlisle, R.C. (Ed.), Americans before Columbus: ice-age origins. University of Pittsburgh, Ethnology Monographs 12, 63–74.