Citazione Stile APA (7a Edizione)

Cowell, H., & Cowell, S. R. (1955). Charles Ives and his music. Oxford University Press.

Citazione stile Chigago Style (17a edizione)

Cowell, Henry, e Sidney Robertson Cowell. Charles Ives and His Music. New York: Oxford University Press, 1955.

Citatione MLA (9a ed.)

Cowell, Henry, e Sidney Robertson Cowell. Charles Ives and His Music. Oxford University Press, 1955.