1. (1982). Tracing Prehistoric Sources of Obsidian. In P.E. Brown and C.L. Stone, Eds., Granite Reef: A Study In Desert Archaeology, pp. 227–241. Arizona State University Anthropological Research Papers 28, and Arizona State University Anthropological Field Studies 3.
2. and (1984). Obsidian Procurement at Chaco Canyon, A. D. 500–1200. In W.J. Judge and J.D. Shelberg, Eds., Recent Research on Chaco Prehistory, pp. 153–160. Albuquerque: Reports of the Chaco Center 8, Division of Cultural Research, National Park Service.
3. (1984). Prehistory of the Southwest. San Diego: Academic Press.