MLA

Barnes, Viola Florence, 1885-1979. Reunion parade. Box 1, folder 4. circa 1916-1919. https://collections.library.yale.edu/catalog/10014330.

APA, 6th edition

Barnes, Viola Florence, 1885-1979. (["Box 1, folder 4"])(circa 1916-1919)[Reunion parade]. https://collections.library.yale.edu/catalog/10014330.