MLA
Lambert. African American Woman Reading a Book to Two Young Children. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 74. https://digital.library.emory.edu/purl/576rxwdbw5-cor.
APA, 6th edition
L. African American woman reading a book to two young children (Box 74) [Postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/576rxwdbw5-cor.
Chicago
Lambert. “African American Woman Reading a Book to Two Young Children.” Postcards. Robert Langmuir African American Photograph Collection, n.d. Box 74. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/576rxwdbw5-cor.