To ES
MLA
Stiles, Ezra, 1727-1795. To ES. Box 4, folder 291. 1750 October 6. https://collections.library.yale.edu/catalog/17343498.
APA, 6th edition
Stiles, Ezra, 1727-1795. (["Box 4, folder 291"])(1750 October 6)[To ES]. https://collections.library.yale.edu/catalog/17343498.