Benz, B. F., L. Cheng, S. W. Leavitt and C. Eastoe
2006 El Riego and Early Maize Agricultural Evolution. In Histories of Maize: Multidisciplinary Approaches to the Prehistory, Biogeography, Domestication, and Evolution of Maize, edited by J. E. Staller, R. H. Tykot and B. F. Benz, pp. 73-82. Academic Press, Amsterdam.