MLA

Brodsky, Joseph, 1940-1996. Venclova, Tomas. Box 15, folder 414. 1972-1981. https://collections.library.yale.edu/catalog/10000482.

APA, 6th edition

Brodsky, Joseph, 1940-1996. (["Box 15, folder 414"])(1972-1981)[Venclova, Tomas]. https://collections.library.yale.edu/catalog/10000482.