Columbia subject headings:
Wagner, Richard, 1813-1883--Performances--Germany--Bayreuth.
Wagner, Wieland, 1917-1966.
Harvard subject headings:
Wagner, Richard, 1813-1883--Performances--Germany--Bayreuth.
Wagner, Wieland, 1917-1966.
Princeton subject headings:
Musicians--Germany--Biography.
Wagner, Richard, 1813-1883--Performances--Germany--Bayreuth.
Wagner, Wieland, 1917-1966.