MLA
Asheville Post Card Co. (Asheville, N.C.). Seven up in Dixieland : an African American woman and 7 children, descending in height, standing in front of a log cabin, with a dog. unknown. Robert Langmuir African American Photograph Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/112m63xskf-cor.
APA, 6th edition
Asheville Post Card Co. (Asheville, N.C.). (unknown)[Seven up in Dixieland : an African American woman and 7 children, descending in height, standing in front of a log cabin, with a dog]. Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/112m63xskf-cor.
Chicago
Asheville Post Card Co. (Asheville, N.C.), Seven up in Dixieland : an African American woman and 7 children, descending in height, standing in front of a log cabin, with a dog, unknown, Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/112m63xskf-cor.