Columbia subject headings:
History--Bibliography.
History--Periodicals--Bibliography.
Monographic series--Germany--Bibliography.
Harvard subject headings:
Europe, German-speaking--Imprints.
Europe--History--Bibliography.
Germany--History--Bibliography.
History--Bibliography
History--Bibliography--Periodicals
History--Study and teaching--Germany--Periodicals--Bibliography.
Monographic series--Bibliography.
Princeton subject headings:
German periodicals--Bibliography.
History--Periodicals--Bibliography.