Παραπομπή σε μορφή APA (7η εκδ.)

Duey, P. A. (2012). Bel canto in its golden age: A study of its teaching concepts. [Read?].

Παραπομπή σε μορφή Chicago (17η εκδ.)

Duey, Philip A. Bel Canto in Its Golden Age: A Study of Its Teaching Concepts. [Alcester?]: [Read?], 2012.

Παραπομπή σε μορφή MLA (9th εκδ.)

Duey, Philip A. Bel Canto in Its Golden Age: A Study of Its Teaching Concepts. [Read?], 2012.