MLA
A Training School for Communists : Martin Luther King, Jr. Attending a Class at a Training School for Communists. 1957. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 71. https://digital.library.emory.edu/purl/948sbcc2j0-cor.
APA, 6th edition
A training school for communists : Martin Luther King, Jr. attending a class at a training school for Communists (Box 71). (1957). [Photographic postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/948sbcc2j0-cor.
Chicago
“A Training School for Communists : Martin Luther King, Jr. Attending a Class at a Training School for Communists.” Photographic postcards. Robert Langmuir African American Photograph Collection, 1957. Box 71. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/948sbcc2j0-cor.