http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
estimates of undiscovered oil and gas north of the Arctic Circle
Energy Resources Program (Geological Survey)
Title from title screen (viewed on Oct. 22, 2008).
At head of title on HTML title screen: Energy Resources Program.
Mode of access: Internet from the USGS web site. Address as of 10/22/08: http://pubs.usgs.gov/fs/2008/3049/fs2008-3049.pdf ; current access available via PURL.
Fact sheet (Geological Survey (U.S.)) ; 2008-3049