Lavignac, A., & Singleton, E. (1969). The music dramas of Richard Wagner and his Festival Theatre in Bayreuth. Translated from the French by Esther Singleton with illus. and diagrs: Translated from the French by Esther Singleton with illus. and diagrs. New York: Haskell House Publishers.

Lavignac, Albert, and Esther Singleton. The Music Dramas of Richard Wagner and His Festival Theatre in Bayreuth. Translated From the French By Esther Singleton With Illus. and Diagrs: Translated From the French By Esther Singleton With Illus. and Diagrs. New York: Haskell House Publishers, 1969.

Lavignac, Albert, and Esther Singleton. The Music Dramas of Richard Wagner and His Festival Theatre in Bayreuth. Translated From the French By Esther Singleton With Illus. and Diagrs: Translated From the French By Esther Singleton With Illus. and Diagrs. New York: Haskell House Publishers, 1969.