Lambert, Philip. The Music of Charles Ives. Composers of the Twen-tieth Century, series edited by Allen Forte. New Haven, CT: Yale University Press, 1997.
Geoffrey Block. Ives: Concord Sonata. Cambridge Music Handbooks, general editor, Julian Rushton. Cambridge, United Kingdom: Cambridge University Press.
Henderson, Clayton W. The Charles Ives Tunebook. Bibliographies in American Music, 14, edited by James R. Heintze. Warren, MI: Harmonie Park Press, 1990.