Wyss, B. (1990). Ragnarök of Illusion: Richard Wagner's Mystical Abyss at Bayreuth. October.
Chicagoスタイル(17版)引用形式Wyss, Beat. "Ragnarök of Illusion: Richard Wagner's Mystical Abyss at Bayreuth." October 1990.
MLA(8版)引用形式Wyss, Beat. "Ragnarök of Illusion: Richard Wagner's Mystical Abyss at Bayreuth." October, 1990.
警告: この引用は必ずしも正確ではありません.