MLA
Legerton, C. L. Hello Ma Baby : Portrait of an African American Girl. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 72. https://digital.library.emory.edu/purl/4816m905s1-cor.
APA, 6th edition
Legerton, C. L. Hello ma baby : portrait of an African American girl (Box 72) [Postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/4816m905s1-cor.
Chicago
Legerton, C. L. “Hello Ma Baby : Portrait of an African American Girl.” Postcards. Robert Langmuir African American Photograph Collection, n.d. Box 72. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/4816m905s1-cor.