MLA
Gulfport Printing Co. (Gulfport, Miss.). Hotel Apartments : main building and cottage : Broadwater Beach, Biloxi, Miss.. unknown. Robert Langmuir African American Photograph Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/4472v6wwrq-cor.
APA, 6th edition
Gulfport Printing Co. (Gulfport, Miss.). (unknown)[Hotel Apartments : main building and cottage : Broadwater Beach, Biloxi, Miss.]. Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/4472v6wwrq-cor.
Chicago
Gulfport Printing Co. (Gulfport, Miss.), Hotel Apartments : main building and cottage : Broadwater Beach, Biloxi, Miss., unknown, Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/4472v6wwrq-cor.