MLA

Barnes, Viola Florence, 1885-1979. Beach outings. Box 1, folder 14 - 15. circa 1916-1919. https://collections.library.yale.edu/catalog/10170906.

APA, 6th edition

Barnes, Viola Florence, 1885-1979. (["Box 1, folder 14 - 15"])(circa 1916-1919)[Beach outings]. https://collections.library.yale.edu/catalog/10170906.