MLA

Berberova, N. (Nina), 1901-1993. "La poésie russe depuis 1917," clipping. Box 38, folder 941. 1950. https://collections.library.yale.edu/catalog/16688055.

APA, 6th edition

Berberova, N. (Nina), 1901-1993. (["Box 38, folder 941"])(1950)["La poésie russe depuis 1917," clipping]. https://collections.library.yale.edu/catalog/16688055.