http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Mode of access: Internet from the FWS web site. Address as of 2/19/09: http://www.fws.gov/sacramentovalleyrefuges/pdf/diving%20ducks-with%20alt.pdf ; current access via PURL.