MLA

Boswell, James, 1740-1795. Boswell, Elizabeth (Boswell), Lady Auchinleck (C 316-329). Box 14, folder 327-29. 1772-93. https://collections.library.yale.edu/catalog/2038691.

APA, 6th edition

Boswell, James, 1740-1795. (["Box 14, folder 327-29"])(1772-93)[Boswell, Elizabeth (Boswell), Lady Auchinleck (C 316-329)]. https://collections.library.yale.edu/catalog/2038691.