MLA

Berberova, N. (Nina), 1901-1993. Dovlatov, Sergei. Box 7, folder 148. 1980-86, n.d.. https://collections.library.yale.edu/catalog/16687993.

APA, 6th edition

Berberova, N. (Nina), 1901-1993. (["Box 7, folder 148"])(1980-86, n.d.)[Dovlatov, Sergei]. https://collections.library.yale.edu/catalog/16687993.