Lua APA (7ú heag.)

Holl, R., Vignoles, R., Schumann, R., Pfitzner, H., & Brahms, J. (2007). Songs. Wigmore Hall Live.

Lua i Stíl Chicago (17ú heag.)

Holl, Robert, Roger Vignoles, Robert Schumann, Hans Pfitzner, agus Johannes Brahms. Songs. London: Wigmore Hall Live, 2007.

Lua MLA (9ú heag.)

Holl, Robert, et al. Songs. Wigmore Hall Live, 2007.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.