MLA
Hugh C. Leighton Co., Manufacturers (Portland, Me.). Home sweet home down south : an African American man in a carriage with a donkey and an African American woman and child, with pigs and chickens on the ground and dogs on the porch. unknown. Robert Langmuir African American Photograph Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/156zw3r23h-cor.
APA, 6th edition
Hugh C. Leighton Co., Manufacturers (Portland, Me.). (unknown)[Home sweet home down south : an African American man in a carriage with a donkey and an African American woman and child, with pigs and chickens on the ground and dogs on the porch]. Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/156zw3r23h-cor.
Chicago
Hugh C. Leighton Co., Manufacturers (Portland, Me.), Home sweet home down south : an African American man in a carriage with a donkey and an African American woman and child, with pigs and chickens on the ground and dogs on the porch, unknown, Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/156zw3r23h-cor.