* '''CLASSIFICATION_NATIONAL_COUNTRY'''
** XML 4.0, 4.1, 4.2, 4.3, 4.4, 4.5 (first listed is highest preference)
*** <code>//us-bibliographic-data-grant/classification-national/country</code>
***example: US
** XML 4.1, 4.2, 4.3, 4.4, 4.5
*** <code>//us-bibliographic-data-grant/us-field-of-classification-search/classification-national/country</code>
***example: US