MLA
Mellen Photo Co. (Chicago, Ill.). Way down in old Virginia : African American children in an ox-drawn cart. unknown. Robert Langmuir African American Photograph Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/351hhmgqr0-cor.
APA, 6th edition
Mellen Photo Co. (Chicago, Ill.). (unknown)[Way down in old Virginia : African American children in an ox-drawn cart]. Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/351hhmgqr0-cor.
Chicago
Mellen Photo Co. (Chicago, Ill.), Way down in old Virginia : African American children in an ox-drawn cart, unknown, Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/351hhmgqr0-cor.