Columbia subject headings:
Harvard subject headings:
Denmark--History--1448-1660--Congresses.
Denmark--History--1660-1814--Congresses.
Oldenburg, House of--Congresses.
Urbanization--History--Congresses.
Urbanization--Scandinavia--History--Congresses.
Princeton subject headings:
Denmark--History--1448-1660--Congresses.
Denmark--History--1660-1814--Congresses.
Oldenburg, House of--Congresses.
Urbanization--History--Congresses.
Urbanization--Scandinavia--History--Congresses.