MLA
A.C. Bosselman & Co. (New York, N.Y.). Vegetable vender : an African American woman carrying a basket of food on her head and another basket on her arms. unknown. Robert Langmuir African American Photograph Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/443nvx0k8g-cor.
APA, 6th edition
A.C. Bosselman & Co. (New York, N.Y.). (unknown)[Vegetable vender : an African American woman carrying a basket of food on her head and another basket on her arms]. Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/443nvx0k8g-cor.
Chicago
A.C. Bosselman & Co. (New York, N.Y.), Vegetable vender : an African American woman carrying a basket of food on her head and another basket on her arms, unknown, Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/443nvx0k8g-cor.