MLA
Markham, Edwin, 1852-1940. Clipping, "Dreyfus," by Edwin Markham, McClure's Magazine, September 1899. September 1899. William H. Scott Family Papers, 1848-1982. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/006sxkspgx-cor.
APA, 6th edition
Markham, Edwin, 1852-1940. (September 1899)[Clipping, "Dreyfus," by Edwin Markham, McClure's Magazine, September 1899]. William H. Scott Family Papers, 1848-1982, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/006sxkspgx-cor.
Chicago
Markham, Edwin, 1852-1940, Clipping, "Dreyfus," by Edwin Markham, McClure's Magazine, September 1899, September 1899, William H. Scott Family Papers, 1848-1982, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/006sxkspgx-cor.