Porges, H. (1983). Wagner rehearsing the 'Ring': An eye-witness account of the stage rehearsals of the first Bayreuth festival. Cambridge University Press.
Chicago Style (17th ed.) CitationPorges, Heinrich. Wagner Rehearsing the 'Ring': An Eye-witness Account of the Stage Rehearsals of the First Bayreuth Festival. Cambridge ; New York: Cambridge University Press, 1983.
MLA (8th ed.) CitationPorges, Heinrich. Wagner Rehearsing the 'Ring': An Eye-witness Account of the Stage Rehearsals of the First Bayreuth Festival. Cambridge University Press, 1983.
Warning: These citations may not always be 100% accurate.