Columbia subject headings:
Harvard subject headings:
Austria--Foreign relations--United States.
United States--Foreign relations--Austria.
World War, 1914-1918--Austria
World War, 1914-1918--United States
Princeton subject headings:
Austria--Foreign relations--Germany.
United States--Foreign relations--Austria.
World War, 1914-1918--Austria.
World War, 1914-1918--United States.