Titze, I. R. (2010). Fascinations with the human voice. NCVS, National Center for Voice and Speech.
Chicago-viite (17. p.)Titze, Ingo R. Fascinations with the Human Voice. Salt Lake City, Utah: NCVS, National Center for Voice and Speech, 2010.
MLA-viite (9. p.)Titze, Ingo R. Fascinations with the Human Voice. NCVS, National Center for Voice and Speech, 2010.
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