Columbia subject headings:
Harvard subject headings:
Austria--History--Nazi Putsch, 1934.
Hitler, Adolf, 1889-1945
National socialism--Austria.
Princeton subject headings:
Austria--Foreign relations--1918-1938.
Austria--History--Nazi Putsch, 1934.
Dollfuss, Engelbert, 1892-1934--Assassination.
Hitler, Adolf, 1889-1945--Military leadership.
Nationalsozialistische Deutsche Arbeiter-Partei.