Smith, W. S., & Chipman, M. (2007). The naked voice: A wholistic approach to singing. Oxford University Press.
Čikaški stil citiranja (17. izdanje)Smith, W. Stephen, i Michael Chipman. The Naked Voice: A Wholistic Approach to Singing. Oxford ; New York: Oxford University Press, 2007.
MLA način citiranja (9. izdanje)Smith, W. Stephen, i Michael Chipman. The Naked Voice: A Wholistic Approach to Singing. Oxford University Press, 2007.
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