MLA
Alabama Post Card Co. (Bessemer, Ala.). Oakwood College, Huntsville, Alabama. unknown. Robert Langmuir African American Photograph Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/8601zcrjj6-cor.
APA, 6th edition
Alabama Post Card Co. (Bessemer, Ala.). (unknown)[Oakwood College, Huntsville, Alabama]. Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/8601zcrjj6-cor.
Chicago
Alabama Post Card Co. (Bessemer, Ala.), Oakwood College, Huntsville, Alabama, unknown, Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/8601zcrjj6-cor.