MLA
A. C. Bosselman & Co. (N.Y.). African American men, women and children holding crates on a strawberry farm, with men on a horse-drawn cart in the background [hand colored]. unknown. Robert Langmuir African American Photograph Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/750tqjq2fx-cor.
APA, 6th edition
A. C. Bosselman & Co. (N.Y.). (unknown)[African American men, women and children holding crates on a strawberry farm, with men on a horse-drawn cart in the background [hand colored]]. Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/750tqjq2fx-cor.
Chicago
A. C. Bosselman & Co. (N.Y.), African American men, women and children holding crates on a strawberry farm, with men on a horse-drawn cart in the background [hand colored], unknown, Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/750tqjq2fx-cor.