MLA

Edwards, Jonathan, 1703-1758. Washington, George. Box 26, folder 1461. 1788 Aug 28. https://collections.library.yale.edu/catalog/2004540.

APA, 6th edition

Edwards, Jonathan, 1703-1758. (["Box 26, folder 1461"])(1788 Aug 28)[Washington, George]. https://collections.library.yale.edu/catalog/2004540.