Crist 2005, p. 43. Crist, Elizabeth (2005). Music for the Common Man: Aaron Copland During the Depression and War. Oxford, England: Oxford University Press. ISBN978-0-19-538359-1. OL3300233M.
Crist 2005, p. 111. Crist, Elizabeth (2005). Music for the Common Man: Aaron Copland During the Depression and War. Oxford, England: Oxford University Press. ISBN978-0-19-538359-1. OL3300233M.