"Nous accusons le Guépéou," typescript carbon, corrected
MLA
Serge, Victor, 1890-1947. "Nous accusons le Guépéou," typescript carbon, corrected. Box 3, folder 156. n.d.. https://collections.library.yale.edu/catalog/16495451.
APA, 6th edition
Serge, Victor, 1890-1947. (["Box 3, folder 156"])(n.d.)["Nous accusons le Guépéou," typescript carbon, corrected]. https://collections.library.yale.edu/catalog/16495451.