MLA
Cards., N. J. Genuine Photograph Souvenir Post. Seven up : an African American Family of Seven Children and Their Mother. 1906. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 71. https://digital.library.emory.edu/purl/0752fqz62m-cor.
APA, 6th edition
Cards., N. J. G. P. S. P. (1906). Seven up : an African American family of seven children and their mother (Box 71) [Photographic postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/0752fqz62m-cor.
Chicago
Cards., N.J. Genuine Photograph Souvenir Post. “Seven up : an African American Family of Seven Children and Their Mother.” Photographic postcards. Robert Langmuir African American Photograph Collection, 1906. Box 71. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/0752fqz62m-cor.