MLA

Boswell, James, 1740-1795. Damhead. Box 127, folder 2339. 1705. https://collections.library.yale.edu/catalog/33576596.

APA, 6th edition

Boswell, James, 1740-1795. (["Box 127, folder 2339"])(1705)[Damhead]. https://collections.library.yale.edu/catalog/33576596.