Columbia subject headings:
Reformation--Germany--History--Congresses.
Reformation--Great Britain--Congresses.
Harvard subject headings:
Comparison (Philosophy)--Congresses.
Germany--Church history--Congresses.
Great Britain--Church history--Congresses.
Islands--Germany--Congresses.
Islands--Great Britain--Congresses.
Reformation--Germany--Congresses.
Reformation--Great Britain--Congresses.
Princeton subject headings: