MLA

Serge, Victor, 1890-1947. "La bête humaine," typescript. Box 3, folder 123. 1936 Sep 12. https://collections.library.yale.edu/catalog/16495444.

APA, 6th edition

Serge, Victor, 1890-1947. (["Box 3, folder 123"])(1936 Sep 12)["La bête humaine," typescript]. https://collections.library.yale.edu/catalog/16495444.