MLA
Horwich Bros. Postal Studios (Oakland, Calif.). African American man in suit and hat next to a flower vase on a table. unknown. Robert Langmuir African American Photograph Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/095j9kd53f-cor.
APA, 6th edition
Horwich Bros. Postal Studios (Oakland, Calif.). (unknown)[African American man in suit and hat next to a flower vase on a table]. Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/095j9kd53f-cor.
Chicago
Horwich Bros. Postal Studios (Oakland, Calif.), African American man in suit and hat next to a flower vase on a table, unknown, Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/095j9kd53f-cor.