MLA
Albertype Co. (Brooklyn, N.Y.). Free cotton and free wool. unknown. Robert Langmuir African American Photograph Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/276f1vhhqk-cor.
APA, 6th edition
Albertype Co. (Brooklyn, N.Y.). (unknown)[Free cotton and free wool]. Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/276f1vhhqk-cor.
Chicago
Albertype Co. (Brooklyn, N.Y.), Free cotton and free wool, unknown, Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/276f1vhhqk-cor.