Columbia subject headings:
Harvard subject headings:
Albania--Foreign relations--Austria.
Albania--Foreign relations--Hungary.
Albania--History.
Austria--Foreign relations--Albania.
Austria--Foreign relations--Hungary.
Austria--History--1867-1918.
Hungary--Foreign relations--Albania.
Hungary--Foreign relations--Austria.
Hungary--History--1867-1918
Science--Political aspects--Albania--History.
Science--Political aspects--Austria--History.
Science--Political aspects--Hungary--History.
Princeton subject headings:
Albania--Foreign relations--Austria.
Albania--Foreign relations--Hungary.
Albania--History.
Austria--Foreign relations--Albania.
Austria--Foreign relations--Hungary.
Austria--History--1867-1918.
Hungary--Foreign relations--Albania.
Hungary--Foreign relations--Austria.
Hungary--History--1867-1918.
Science--Political aspects--Albania--History.
Science--Political aspects--Austria--History.
Science--Political aspects--Hungary--History.