Columbia subject headings:
Church and state--Scandinavia--Congresses.
Scandinavia--Church history--Congresses.
Harvard subject headings:
Church and state--Scandinavia--Congresses.
Civil religion--Scandinavia--Congresses.
Religion and state--Scandinavia--Congresses.
Scandinavia--Church history--Congresses.
Scandinavia--Religion--Congresses.
Princeton subject headings: