Qahwash, A.A., 1972, An electrical resistivity survey in the Avra Valley, Pima County, Arizona: Tucson, University of Arizona, M.S. thesis. Authors Qahwash, A.A. Publication Date 1972 Citation Tucson, University of Arizona, M.S. thesis. State AZ Province BR County PM Placenames Avra Valley Keywords Geophysical Survey More Keywords Geophysical Survey, AzGeoBib RefNum 8195