Varien, Mark. 1997. ?New Perspectives On Settlement Patterns: Sedentism And Mobility In A Social Landscape?. Anthropology. Anthropology. Arizona State University. http://ezproxy.library.arizona.edu/login?url=http://proquest.umi.com/pqdweb?did=739774541&sid=19&Fmt=2&clientId=43922&RQT=309&VName=PQD.