MLA

Wharton, Edith, 1862-1937. Lyauty, Herbert. Box 54, folder 1612. 1917. https://collections.library.yale.edu/catalog/16793586.

APA, 6th edition

Wharton, Edith, 1862-1937. (["Box 54, folder 1612"])(1917)[Lyauty, Herbert]. https://collections.library.yale.edu/catalog/16793586.