APA-ийн эшлэл(7 дахь хэвлэлт)

Emmons, S., & Thomas, A. (1998). Power performance for singers: Transcending the barriers. Oxford University Press.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Emmons, Shirlee, ба Alma Thomas. Power Performance for Singers: Transcending the Barriers. New York: Oxford University Press, 1998.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Emmons, Shirlee, ба Alma Thomas. Power Performance for Singers: Transcending the Barriers. Oxford University Press, 1998.