Columbia subject headings:
Harvard subject headings:
Austria--Relations--Sources.
Diplomatic and consular service, Austrian--Foreign countries--Handbooks, manuals, etc.
Diplomatic and consular service, Austrian--History--Sources.
Handbooks and manuals
Princeton subject headings:
Austria--Relations--Sources.
Diplomatic and consular service, Austrian--Foreign countries--Handbooks, manuals, etc.
Diplomatic and consular service, Austrian--History--Sources.