Columbia subject headings:
Germany--History--Unification, 1990--Bibliography.
Germany--History--Unification, 1990--Book reviews.
Harvard subject headings:
Germany--History--Unification, 1990--Bibliography.
Germany--History--Unification, 1990--Book reviews.
Princeton subject headings:
Germany--History--Unification, 1990---Bibliography.
Germany--History--Unification, 1990---Book reviews.