Stein, J. M. (1960). Richard Wagner & the synthesis of the arts. Wayne University Press.
Lua i Stíl Chicago (17ú heag.)Stein, Jack Madison. Richard Wagner & the Synthesis of the Arts. Detroit: Wayne University Press, 1960.
Lua MLA (9ú heag.)Stein, Jack Madison. Richard Wagner & the Synthesis of the Arts. Wayne University Press, 1960.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.