Columbia subject headings:
Anschluss movement, 1918-1938.
Austria--Foreign relations--Switzerland.
Austria--History--1918-1938.
Switzerland--Foreign relations--Austria.
Harvard subject headings:
Anschluss movement, 1918-1938.
Austria--Foreign relations--Switzerland.
Austria--History--1918-1938.
Austria--History--Anschluss, 1938.
Switzerland--Foreign relations--Austria.
Princeton subject headings:
Anschluss movement, 1918-1938.
Austria--History--1918-1938.
Switzerland--History--20th century.
Switzerland--Politics and government--20th century.