Citazione Stile APA (7a Edizione)

Appelman, D. R. (1986). The science of vocal pedagogy: Theory and application (1st Midland book ed.). Indiana University Press.

Citazione stile Chigago Style (17a edizione)

Appelman, D. Ralph. The Science of Vocal Pedagogy: Theory and Application. 1st Midland book ed. Bloomington: Indiana University Press, 1986.

Citatione MLA (9a ed.)

Appelman, D. Ralph. The Science of Vocal Pedagogy: Theory and Application. 1st Midland book ed. Indiana University Press, 1986.