Columbia subject headings:
Hamburg Region (Germany)--Periodicals.
Harvard subject headings:
Hamburg (Germany)--Economic conditions--Periodicals.
Hamburg (Germany)--History--Periodicals.
Hamburg (Germany)--Social conditions--Periodicals.
Princeton subject headings:
Hamburg (Germany)--Economic conditions--Periodicals.
Hamburg (Germany)--History--Periodicals.
Hamburg (Germany)--Social conditions--Periodicals.