James D. Startt, "American Film Propaganda in Revolutionary Russia,"Prologue magazine, vol. 30, no. 3 (Fall 1998). See also: "Motion-Picture Publicity: It's [sic] Relation to Aiding the Work of the Industrial Commission Which Has Been Sent to Russia," June 17, 1917. Charles Edward Russell Papers, Box 7. Manuscript Division, Library of Congress, Washington, DC.
Eugene V. Debs, "Russell and his War Views," Letter to the Editor of The American Socialist, [Chicago], v. 2, no. 29, whole no. 169 (January 29, 1916), p. 4.