MLA

Mason, William Smith, 1866-. Benjamin Franklin: "Information respecting America." Autograph manuscript.. Box 34, folder 2140. 1784. https://collections.library.yale.edu/catalog/10696075.

APA, 6th edition

Mason, William Smith, 1866-. (["Box 34, folder 2140"])(1784)[Benjamin Franklin: "Information respecting America." Autograph manuscript.]. https://collections.library.yale.edu/catalog/10696075.