MLA
Carriere & Cie (Montreal). An African American man in a suit with a tattered overcoat, with a hat, bandana and eyeglasses leaning on a cane. unknown. Robert Langmuir African American Photograph Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/12683bk3vj-cor.
APA, 6th edition
Carriere & Cie (Montreal). (unknown)[An African American man in a suit with a tattered overcoat, with a hat, bandana and eyeglasses leaning on a cane]. Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/12683bk3vj-cor.
Chicago
Carriere & Cie (Montreal), An African American man in a suit with a tattered overcoat, with a hat, bandana and eyeglasses leaning on a cane, unknown, Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/12683bk3vj-cor.