MLA

Edwards, Jonathan, 1703-1758. Parsons, Jonathan. Box 28, folder 1527. 1729-30. https://collections.library.yale.edu/catalog/11403805.

APA, 6th edition

Edwards, Jonathan, 1703-1758. (["Box 28, folder 1527"])(1729-30)[Parsons, Jonathan]. https://collections.library.yale.edu/catalog/11403805.