Columbia subject headings:
Magyar Állami Operaház.
Mahler, Gustav, 1860-1911.
Music--Hungary--Budapest--19th century--History and criticism.
Harvard subject headings:
Mahler, Gustav, 1860-1911.
Music--Hungary--19th century--History and criticism.
Princeton subject headings:
Magyar Állami Operaház.
Mahler, Gustav, 1860-1911.
Music--Hungary--Budapest--19th century--History and criticism.