MLA
Co., Albertype. Cake Walk : Three African American Men and Two Women Dressed up, with One Playing a String Instrument and Walking a Dog. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 74. https://digital.library.emory.edu/purl/358bg79cqp-cor.
APA, 6th edition
Co., A. Cake walk : three African American men and two women dressed up, with one playing a string instrument and walking a dog (Box 74) [Postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/358bg79cqp-cor.
Chicago
Co., Albertype. “Cake Walk : Three African American Men and Two Women Dressed up, with One Playing a String Instrument and Walking a Dog.” Postcards. Robert Langmuir African American Photograph Collection, n.d. Box 74. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/358bg79cqp-cor.