http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
U.S. Dept. of the Interior, U.S. Geological Survey
Description based on: Feb. 2000; title from caption (viewed May 23, 2001).
Mode of access: Internet at the GPO Permanent Access web site. Address as of 10/11/07: https://permanent.fdlp.gov/lps1851/; current access is available via PURL.
Split into: Gold in ... ; and: Silver in ...; and: Platinum-group metals in ...