Lua APA (7ú heag.)

Brooks, C. A., & Sims, R. (2015). Roland Hayes: The legacy of an American tenor. Indiana University Press.

Lua i Stíl Chicago (17ú heag.)

Brooks, Christopher Antonio, agus Robert Sims. Roland Hayes: The Legacy of an American Tenor. Bloomington, Indiana: Indiana University Press, 2015.

Lua MLA (9ú heag.)

Brooks, Christopher Antonio, agus Robert Sims. Roland Hayes: The Legacy of an American Tenor. Indiana University Press, 2015.

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