http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Fieldnotes from the Arizona Bureau of Geology and Mineral Technology
Bureau of Geology and Mineral Technology.
Continued in spring 1985 by: Fieldnotes.
Fieldnotes from the State of Arizona, Bureau of Geology and Mineral Technology