MLA

Thistlewood, Thomas, 1721-1786. 79. Reading notes. Box 10, folder 74. undated. https://collections.library.yale.edu/catalog/11681842.

APA, 6th edition

Thistlewood, Thomas, 1721-1786. (["Box 10, folder 74"])(undated)[79. Reading notes]. https://collections.library.yale.edu/catalog/11681842.