MLA

Edwards, Jonathan, 1703-1758. Clark, Peter, extract. Box 22, folder 1280. 1750 May 7. https://collections.library.yale.edu/catalog/10900908.

APA, 6th edition

Edwards, Jonathan, 1703-1758. (["Box 22, folder 1280"])(1750 May 7)[Clark, Peter, extract]. https://collections.library.yale.edu/catalog/10900908.