%0 Thesis %B Anthropology %D 1977 %T An ecological model of trade: Prehistoric economic change in the northern Rio Grande region of New Mexico %A Gordon Bronitsky %B Anthropology %I University of Arizona %V PhD %U http://ezproxy.library.arizona.edu/login?url=http://proquest.umi.com/pqdweb?did=759276391&sid=29&Fmt=1&clientId=43922&RQT=309&VName=PQD