MLA
Daughters Black Photography (Galveston, Tex.). Two African American girls in dresses, with bows in their hair, posing on a set of stairs in front of a house. unknown. Robert Langmuir African American Photograph Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/361rfj6q74-cor.
APA, 6th edition
Daughters Black Photography (Galveston, Tex.). (unknown)[Two African American girls in dresses, with bows in their hair, posing on a set of stairs in front of a house]. Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/361rfj6q74-cor.
Chicago
Daughters Black Photography (Galveston, Tex.), Two African American girls in dresses, with bows in their hair, posing on a set of stairs in front of a house, unknown, Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/361rfj6q74-cor.