MLA

Thistlewood, Thomas, 1721-1786. 8. Diary. Box 2, folder 8. 1757. https://collections.library.yale.edu/catalog/11874014.

APA, 6th edition

Thistlewood, Thomas, 1721-1786. (["Box 2, folder 8"])(1757)[8. Diary]. https://collections.library.yale.edu/catalog/11874014.