MLA
Weidner, Charles. Raisin Vineyard, California : [African American Laborers Picking Raisins] [Hand Colored]. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 68. https://digital.library.emory.edu/purl/436tx95x94-cor.
APA, 6th edition
Weidner, C. Raisin vineyard, California : [African American laborers picking raisins] [hand colored] (Box 68) [Postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/436tx95x94-cor.
Chicago
Weidner, Charles. “Raisin Vineyard, California : [African American Laborers Picking Raisins] [Hand Colored].” Postcards. Robert Langmuir African American Photograph Collection, n.d. Box 68. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/436tx95x94-cor.