Ciolek-Torrello, Richard. 1978. ?A Statistical Analysis Of Activity Organization: Grasshopper Pueblo, Arizona?. Anthropology. Anthropology. University of Arizona. http://ezproxy.library.arizona.edu/login?url=http://proquest.umi.com/pqdweb?did=759315121&sid=28&Fmt=1&clientId=43922&RQT=309&VName=PQD.