MLA
National Art Views Co. (N.Y.). Proof of patience : an African American woman on the porch in a rocking chair and a little boy sitting on the ground with a handbag and hat next to him. unknown. Robert Langmuir African American Photograph Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/27312jm65k-cor.
APA, 6th edition
National Art Views Co. (N.Y.). (unknown)[Proof of patience : an African American woman on the porch in a rocking chair and a little boy sitting on the ground with a handbag and hat next to him]. Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/27312jm65k-cor.
Chicago
National Art Views Co. (N.Y.), Proof of patience : an African American woman on the porch in a rocking chair and a little boy sitting on the ground with a handbag and hat next to him, unknown, Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/27312jm65k-cor.