MLA
Convention., New England Baptist Missionary. New England Baptist Missionary Convention Broadside, St. Paul's Baptist Church, Boston, Massachusetts, October 19, 1909. 1909. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 3, Folder 18. https://digital.library.emory.edu/purl/310jsxkv4z-cor.
APA, 6th edition
Convention., N. E. B. M. (1909). New England Baptist Missionary Convention broadside, St. Paul's Baptist Church, Boston, Massachusetts, October 19, 1909 (Box 3, Folder 18) [Fliers]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/310jsxkv4z-cor.
Chicago
Convention., New England Baptist Missionary. “New England Baptist Missionary Convention Broadside, St. Paul's Baptist Church, Boston, Massachusetts, October 19, 1909.” Fliers. William H. Scott Family Papers, 1848-1982, 1909. Box 3, Folder 18. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/310jsxkv4z-cor.