MLA

Jolas, Eugène, 1894-1952. Boyle, Kay. Box 27, folder 503. 1941. https://collections.library.yale.edu/catalog/16569891.

APA, 6th edition

Jolas, Eugène, 1894-1952. (["Box 27, folder 503"])(1941)[Boyle, Kay]. https://collections.library.yale.edu/catalog/16569891.