MLA
Adolph Selige Pub. Co. (St. Louis, Mo.). In the cotton field : six African American men, two African American women and three African American children picking cotton in a field with a man in a suit standing next to a wagon with an African American man in it. August 1906. Robert Langmuir African American Photograph Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/986b2rbp35-cor.
APA, 6th edition
Adolph Selige Pub. Co. (St. Louis, Mo.). (August 1906)[In the cotton field : six African American men, two African American women and three African American children picking cotton in a field with a man in a suit standing next to a wagon with an African American man in it]. Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/986b2rbp35-cor.
Chicago
Adolph Selige Pub. Co. (St. Louis, Mo.), In the cotton field : six African American men, two African American women and three African American children picking cotton in a field with a man in a suit standing next to a wagon with an African American man in it, August 1906, Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/986b2rbp35-cor.