APA aipamena
Christy, V. A. (1961). Expressive singing: A textbook for school or studio class or private teaching. Wm.C. Brown Co..
Chicago Style aipamena
Christy, Van Ambrose. Expressive Singing: A Textbook for School or Studio Class or Private Teaching. Dubuque, Iowa: Wm.C. Brown Co., 1961.
MLA aipamena
Christy, Van Ambrose. Expressive Singing: A Textbook for School or Studio Class or Private Teaching. Wm.C. Brown Co., 1961.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.