Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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