MLA
Florist., Royal. Business Card for Robert H. Hawkins : Pianists and Organists in Philadelphia (Pa.). Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 25. https://digital.library.emory.edu/purl/7547pvmd0x-cor.
APA, 6th edition
Florist., R. Business card for Robert H. Hawkins : pianists and organists in Philadelphia (Pa.) (Box 25) [Card photographs (photographs)]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/7547pvmd0x-cor.
Chicago
Florist., Royal. “Business Card for Robert H. Hawkins : Pianists and Organists in Philadelphia (Pa.).” Card photographs (photographs). Robert Langmuir African American Photograph Collection, n.d. Box 25. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/7547pvmd0x-cor.