Columbia subject headings:
Ecclesiastical law--Europe.
Freedom of religion--Europe.
Freedom of religion--United States.
Religious law and legislation.
Harvard subject headings:
Ecclesiastical law--Europe.
Freedom of religion--Europe
Freedom of religion--United States
Religious law and legislation.
Princeton subject headings:
Ecclesiastical law--Europe.
Freedom of religion--Europe.
Freedom of religion--United States.
Religious law and legislation.