MLA
Kreh's Art Studio (Frederick, Md.). African American man in robes holding a book. unknown. Robert Langmuir African American Photograph Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/361rfj6q7t-cor.
APA, 6th edition
Kreh's Art Studio (Frederick, Md.). (unknown)[African American man in robes holding a book]. Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/361rfj6q7t-cor.
Chicago
Kreh's Art Studio (Frederick, Md.), African American man in robes holding a book, unknown, Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/361rfj6q7t-cor.