MLA

Simpson, Randolph Linsly, 1927-1992. E. Fox Photo, no location Full length portrait of young boy standing next to stand covered with light scarf. Cabinet photograph. Box 9, folder 213. circa 1870. https://collections.library.yale.edu/catalog/2002265.

APA, 6th edition

Simpson, Randolph Linsly, 1927-1992. (["Box 9, folder 213"])(circa 1870)[E. Fox Photo, no location Full length portrait of young boy standing next to stand covered with light scarf. Cabinet photograph]. https://collections.library.yale.edu/catalog/2002265.