APA (7th ed.) Zitazioa

Sullivan, J. W. (1949). Beethoven: His spiritual development. The New American Library.

Chicago Style (17th ed.) Zitazioa

Sullivan, J. W. Beethoven: His Spiritual Development. Nueva York: The New American Library, 1949.

MLA (9th ed.) Zitazioa

Sullivan, J. W. Beethoven: His Spiritual Development. The New American Library, 1949.