MLA

Ford, Julia Ellsworth, 1859-1950. Binyon, Lawrence. Box 1, folder 8. 1913 September 13. https://collections.library.yale.edu/catalog/17167805.

APA, 6th edition

Ford, Julia Ellsworth, 1859-1950. (["Box 1, folder 8"])(1913 September 13)[Binyon, Lawrence]. https://collections.library.yale.edu/catalog/17167805.