MLA

Edwards, Jonathan, 1703-1758. Comstock, Cyrus. Box 26, folder 1437. 1801 Jul 4. https://collections.library.yale.edu/catalog/10956688.

APA, 6th edition

Edwards, Jonathan, 1703-1758. (["Box 26, folder 1437"])(1801 Jul 4)[Comstock, Cyrus]. https://collections.library.yale.edu/catalog/10956688.