MLA
Singley, B. L. (Benjamin Lloyd). Golly! dis am cheaper dan twofers : African American boy smoking the cigar of a sleeping man. 1897 approx.. Robert Langmuir African American Photograph Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/023vt4b8kg-cor.
APA, 6th edition
Singley, B. L. (Benjamin Lloyd). (1897 approx.)[Golly! dis am cheaper dan twofers : African American boy smoking the cigar of a sleeping man]. Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/023vt4b8kg-cor.
Chicago
Singley, B. L. (Benjamin Lloyd), Golly! dis am cheaper dan twofers : African American boy smoking the cigar of a sleeping man, 1897 approx., Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/023vt4b8kg-cor.