MLA
A Group of African American Men Wearing Suits, Some Standing, Some Seated on Chairs, Some Seated on the Floor, Including Thurgood Marshall 3rd Row, 4th from Left. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 50. https://digital.library.emory.edu/purl/610wpzgmzz-cor.
APA, 6th edition
A group of African American men wearing suits, some standing, some seated on chairs, some seated on the floor, including Thurgood Marshall 3rd row, 4th from left (Box 50). [Card photographs (photographs)]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/610wpzgmzz-cor.
Chicago
“A Group of African American Men Wearing Suits, Some Standing, Some Seated on Chairs, Some Seated on the Floor, Including Thurgood Marshall 3rd Row, 4th from Left.” Card photographs (photographs). Robert Langmuir African American Photograph Collection, n.d. Box 50. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/610wpzgmzz-cor.