MLA

Hulme, Kathryn, 1900-1981. Photographs. Box 55, folder 778-79. n.d.. https://collections.library.yale.edu/catalog/2018262.

APA, 6th edition

Hulme, Kathryn, 1900-1981. (["Box 55, folder 778-79"])(n.d.)[Photographs]. https://collections.library.yale.edu/catalog/2018262.