APA (7th ed.) Zitazioa

Coward, H. (2007). Choral technique and interpretation. Read Books.

Chicago Style (17th ed.) Zitazioa

Coward, Henry. Choral Technique and Interpretation. Alcester: Read Books, 2007.

MLA (9th ed.) Zitazioa

Coward, Henry. Choral Technique and Interpretation. Read Books, 2007.