MLA
Lovers of All Nations, American Negro : an African American Man Singing and Playing a Banjo, with a an African American Woman Leaning on His Shoulder, in a Rowboat [Hand Colored]. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 72. https://digital.library.emory.edu/purl/706g1jwswv-cor.
APA, 6th edition
Lovers of all nations, American Negro : an African American man singing and playing a banjo, with a an African American woman leaning on his shoulder, in a rowboat [hand colored] (Box 72). [Postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/706g1jwswv-cor.
Chicago
“Lovers of All Nations, American Negro : an African American Man Singing and Playing a Banjo, with a an African American Woman Leaning on His Shoulder, in a Rowboat [Hand Colored].” Postcards. Robert Langmuir African American Photograph Collection, n.d. Box 72. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/706g1jwswv-cor.