Cita APA (7th ed.)

Sullivan, J. W. N. (1952). Beethoven: His Spiritual Development (2. Aufl.). Mentor Books.

Cita Chicago (17th ed.)

Sullivan, J. W. N. Beethoven: His Spiritual Development. 2. Aufl. New York: Mentor Books, 1952.

Cita MLA (8th ed.)

Sullivan, J. W. N. Beethoven: His Spiritual Development. 2. Aufl. Mentor Books, 1952.