Columbia subject headings:
Harvard subject headings:
Church and state--France
Church and state--Germany
Church and state--United States
Ecclesiastical law--France.
Ecclesiastical law--Germany.
Ecclesiastical law--United States.
Freedom of religion--France
Freedom of religion--Germany
Freedom of religion--United States
Princeton subject headings:
Church and state--European Union countries.
Church and state.
Ecclesiastical law--European Union countries.
Ecclesiastical law.