APA-ийн эшлэл(7 дахь хэвлэлт)

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

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

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

MLA -ийн эшлэл (9 дэх хэвлэлт)

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