Columbia subject headings:
Harvard subject headings:
Cities and towns--Austria--History.
Cities and towns--Louisiana--History.
Innsbruck (Austria)--Foreign relations--Louisiana--New Orleans.
Innsbruck (Austria)--History.
New Orleans (La.)--Foreign relations--Austria--Innsbruck.
New Orleans (La.)--History.
Sister cities--History.
Princeton subject headings:
Cities and towns--Austria--History.
Cities and towns--Louisiana--History.
Innsbruck (Austria)--Foreign relations--Louisiana--New Orleans.
Innsbruck (Austria)--History.
New Orleans (La.)--Foreign relations--Austria--Innsbruck.
New Orleans (La.)--History.
Sister cities--History.