Wolf, H., & Strauss, R. (1957). Elisabeth Schumann sings German songs by Wolf & Strauss: A connoisseur historical recording. World Record Club.
Lua i Stíl Chicago (17ú heag.)Wolf, Hugo, agus Richard Strauss. Elisabeth Schumann Sings German Songs by Wolf & Strauss: A Connoisseur Historical Recording. Richmond, Surrey: World Record Club, 1957.
Lua MLA (8ú heag.)Wolf, Hugo, agus Richard Strauss. Elisabeth Schumann Sings German Songs by Wolf & Strauss: A Connoisseur Historical Recording. World Record Club, 1957.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.