Carter, Elliott. “Notes on the Program: Charles Ives.” Program notes for Second Annual Festival of Contemporary American Music, 6-10. Columbia University, New York, May 10-13, 1946.
H. Wiley Hitchock and Vivan Perlis, eds. An Ives Celebration: Papers and Panels of the Charles Ives Centennial Festival-Conference. Urbana, IL: University of Illinois Press, 1977.