MLA

Edwards, Jonathan, 1703-1758. Gay, William. Box 27, folder 1486. 1818 Jun 25. https://collections.library.yale.edu/catalog/10985855.

APA, 6th edition

Edwards, Jonathan, 1703-1758. (["Box 27, folder 1486"])(1818 Jun 25)[Gay, William]. https://collections.library.yale.edu/catalog/10985855.