MLA
Photo., Peace. Two Men in Suits Standing Pointing to a Poster Stating Americanism Is Our Religion and the Fundamental Principles upon Which Old Glory Stands. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 32. https://digital.library.emory.edu/purl/617qnk98zj-cor.
APA, 6th edition
Photo., P. Two men in suits standing pointing to a poster stating Americanism is our religion and the fundamental principles upon which Old Glory stands (Box 32) [Black-and-white photographs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/617qnk98zj-cor.
Chicago
Photo., Peace. “Two Men in Suits Standing Pointing to a Poster Stating Americanism Is Our Religion and the Fundamental Principles upon Which Old Glory Stands.” Black-and-white photographs. Robert Langmuir African American Photograph Collection, n.d. Box 32. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/617qnk98zj-cor.