MLA
Sherman, Ron. Cesar Chavez Receiving the 2nd Martin Luther King, Jr. Peace Prize from Coretta Scott King. 1974. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 2, Folder 9. https://digital.library.emory.edu/purl/293gxd25mt-cor.
APA, 6th edition
Sherman, R. (1974). Cesar Chavez receiving the 2nd Martin Luther King, Jr. Peace Prize from Coretta Scott King (Box 2, Folder 9) [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/293gxd25mt-cor.
Chicago
Sherman, Ron. “Cesar Chavez Receiving the 2nd Martin Luther King, Jr. Peace Prize from Coretta Scott King.” Black-and-white photographs. Ron Sherman Photographs Collection, 1974. Box 2, Folder 9. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/293gxd25mt-cor.