MLA

Edwards, Jonathan, 1703-1758. To Elizabeth Whittelsey. Box 28, folder 1577. 1822 Jan 22. https://collections.library.yale.edu/catalog/11403854.

APA, 6th edition

Edwards, Jonathan, 1703-1758. (["Box 28, folder 1577"])(1822 Jan 22)[To Elizabeth Whittelsey]. https://collections.library.yale.edu/catalog/11403854.