]
(2004). Flexibility by Design: How mobile GIS meets the needs of archaeological survey.
Cartography and Geographic Information Science. 31, 137-151.
(2003). Fluvial history of the Rio Ilave valley, Peru, and its relationship to climate and human history.
Palaeogeography, Palaeoclimatology, Palaeoecology. 194, 165-185. Abstract
(1968). Further analysis of Near Eastern obsidians.
Proceedings of the Prehistoric Society. 34, 319-331.
(1998). Gamma Rays, X-Rays and Stone Tools: Some Recent Advances in Archaeological Geochemistry.
Journal of Archaeological Science. 25, 259-270. Abstract
(2001). Genetic analysis reveals the wild ancestors of the llama and the alpaca.
Proceedings of the Royal Society London B. 268, 2575-2584. Abstract
(1994). The Geological Occurence of Lithic Material and Stone Tool Production Strategies.
Geoarchaeology. 9, 375-391. Abstract
(2001). Geology of El Misti volcano near the city of Arequipa, Peru.
Geol Soc Am Bull. 113, 1593-1610. Abstract
(1998). Getting to the Point: Evolutionary change in prehistoric weaponry.
Journal of Archaeological Method and Theory. 5, 345-408. Abstract
(1997). Gifts given, gifts taken: The Behavioral Ecology of Nonmarket, Intragroup Exchange.
Journal of Archaeological Research. 5, 121-168. Abstract
(2001). Grids and Datums: Republic of Bolivia.
American Society for Photogrammetry and Remote Sensing. 67, 777-778.
(2006). Grids and Datums: Republic of Perú.
American Society for Photogrammetry and Remote Sensing. 72, 495-496.
(1925). Handbook of the Indians of California.
Bureau of American Ethnology Bulletin. 78, 1-995.
(1998). High-precision radiocarbon calibration for terrestrial and marine samples.
Radiocarbon. 40, 1127-1151.
(1991). High-precision trace-element characterization of major Mesoamerican obsidian sources and further analyses of artifacts from San Lorenzo Tenochtitlan, Mexico.
Latin American Antiquity. 2, 69-91.
(2000). Historical changes in the environment of Lake Titicaca: evidence from ostracod ecology and evolution.
Advances in Ecological Research. 31, 497–520.
(1997). Holocene Paleohydrology of the Tropical Andes from Lake Records.
Quaternary Research. 47, 70-80. Abstract
(2005). Huayrachinas and Tocochimbos: Traditional Smelting Technology of the Southern Andes.
Latin American Antiquity. 16, 3-25.
(2002). Human Occupations and Climate Change in the Puna de Atacama, Chile.
Science. 298, 821-824.
(1987). Hunters of the dry puna and salt puna in northern Chile.
Andean Past. 1, 57-110.
(1946). Inca culture at the time of the Spanish conquest.
Handbook of South American Indians. 2, 183-330.
(2002). An Index of Invasiveness for the Measurement of Unifacial and Bifacial Retouch: A theoretical, experimental and archaeological validation.
Journal of Archaeological Science. 29, 65-75. Abstract
(1994). An initial consideration of obsidian procurement and exchange in prehispanic Ecuador.
Latin American Antiquity. 5, 228-255.
(1980). An Initial Examination of Prehistoric Obsidian Exchange in Hidalgo County, New Mexico.
The Kiva. 45, 227-251.
(1986). Interdependence among Egalitarian Societies.
Journal of Anthropological Archaeology. 5, 279-312.
(2004). Interfaces: Mobile GIS in archaeological survey.
The SAA Archaeological Record. 4, 17-22.