MLA

Edwards, Jonathan, 1703-1758. Edwards, Elizabeth T.. Box 26, folder 1465. 1813 Aug 25. https://collections.library.yale.edu/catalog/10956713.

APA, 6th edition

Edwards, Jonathan, 1703-1758. (["Box 26, folder 1465"])(1813 Aug 25)[Edwards, Elizabeth T.]. https://collections.library.yale.edu/catalog/10956713.