MARC Controls - http://www.loc.gov/standards/ Required [element], Single Occurrence, with Simple Type [inline-Form-marcCountry] localName is [marcCountry] without namespace Required [element], Single Occurrence, with Simple Type [inline-Form-marcLanguage] localName is [marcLanguage] without namespace Required [element], Single Occurrence, with Simple Type [inline-Form-marcGeoAreaCode] localName is [marcGeoAreaCode] without namespace MARC Controls - http://www.loc.gov/standards/