Columbia subject headings:
Harvard subject headings:
Tango (Dance)--France--Paris--History--19th century.
Tango (Dance)--Germany--Berlin--History--19th century.
Tangos--History and criticism
Princeton subject headings:
Tango (Dance)--France--Paris--History--19th century.
Tango (Dance)--Germany--Berlin--History--19th century.
Tangos--History and criticism.