MLA
Cash Drug Store (Dothan, Ala.). Dothan, Alabama : cotton picking the wiregrass area with modern mechanical cotton picking machines [hand colored]. unknown. Robert Langmuir African American Photograph Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/0278sf7m3g-cor.
APA, 6th edition
Cash Drug Store (Dothan, Ala.). (unknown)[Dothan, Alabama : cotton picking the wiregrass area with modern mechanical cotton picking machines [hand colored]]. Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/0278sf7m3g-cor.
Chicago
Cash Drug Store (Dothan, Ala.), Dothan, Alabama : cotton picking the wiregrass area with modern mechanical cotton picking machines [hand colored], unknown, Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/0278sf7m3g-cor.