http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Totalization agreement with the United Kingdom
Social security agreement between the U.S. and the United Kingdom
Social Security Administration, Office of International Operations, OIO--Totalization, P.O. Box 17769, Baltimore, MD 21235-7769, USA