Collection: Elia Kazan: Selected Letters Letter ID: slek_18 Year: 1939 Source: Albert J. Devlin and Marlene J. Devlin, ed., The Selected Letters of Elia Kazan. New York: Alfred A. Knopf, 2014.
Collection: Karl Marx and Frederick Engels Correspondence 1870-1895 Letter ID: 105p176v44 Date: 1871-07-26 Source: Karl Marx and Frederick Engels: Collected Works. Vol. 44. London: Lawrence and Wishart, 1989
Collection: Selected Correspondence of Charles Ives Letter ID: 68 Date: 1921-03-10 Source: Tom C. Owens, ed. (2007). Selected Correspondence of Charles Ives. Berkeley: University of California Press.
Collection: Selected Correspondence of Charles Ives Letter ID: 80 Date: 1922-12-04 Source: Tom C. Owens, ed. (2007). Selected Correspondence of Charles Ives. Berkeley: University of California Press.
Collection: Selected Correspondence of Charles Ives Letter ID: 82 Date: 1924-01-21 Source: Tom C. Owens, ed. (2007). Selected Correspondence of Charles Ives. Berkeley: University of California Press.