MLA

Fitzgerald, Robert, 1910-1985. Photographs. Box 96, folder 3390-3391. n.d.. https://collections.library.yale.edu/catalog/2018945.

APA, 6th edition

Fitzgerald, Robert, 1910-1985. (["Box 96, folder 3390-3391"])(n.d.)[Photographs]. https://collections.library.yale.edu/catalog/2018945.