MLA
Teich, Curt, and Co. Mechanical Cotton Picker : an African American Man Using a Mechanical Cotton Picker [Hand Colored]. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 68. https://digital.library.emory.edu/purl/726xwdbrxz-cor.
APA, 6th edition
Teich, C., & C. Mechanical cotton picker : an African American man using a mechanical cotton picker [hand colored] (Box 68) [Postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/726xwdbrxz-cor.
Chicago
Teich, Curt, and Co. “Mechanical Cotton Picker : an African American Man Using a Mechanical Cotton Picker [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/726xwdbrxz-cor.