Dresher, W.H., 1977, 1976-1977, Annual report: Arizona Bureau of Mines, 7 p. [now available as Arizona Geological Survey Open-File Report 77-4]. Authors Dresher, W.H. Publication Date 1977 Citation Arizona Bureau of Mines, 7 p. [now available as Arizona Geological Survey Open-File Report 77-4]. State AZ Keywords History More Keywords History, AzGeoBib RefNum 14101