Chatham, William Pitt, 1st E. of (L 364-368)
MLA
Boswell, James, 1740-1795. Chatham, William Pitt, 1st E. of (L 364-368). Box 3, folder 66. 1766-67. https://collections.library.yale.edu/catalog/2038298.
APA, 6th edition
Boswell, James, 1740-1795. (["Box 3, folder 66"])(1766-67)[Chatham, William Pitt, 1st E. of (L 364-368)]. https://collections.library.yale.edu/catalog/2038298.