MLA
Gonne, Maud, 1866-1953. Maud Gonne's description of the arrest of her son, Sean MacBride - September 23, 1927. September 23, 1927. Maud Gonne and W.B. Yeats Papers, circa 1890-1938. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/1439zw3tdq-cor.
APA, 6th edition
Gonne, Maud, 1866-1953. (September 23, 1927)[Maud Gonne's description of the arrest of her son, Sean MacBride - September 23, 1927]. Maud Gonne and W.B. Yeats Papers, circa 1890-1938, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/1439zw3tdq-cor.
Chicago
Gonne, Maud, 1866-1953, Maud Gonne's description of the arrest of her son, Sean MacBride - September 23, 1927, September 23, 1927, Maud Gonne and W.B. Yeats Papers, circa 1890-1938, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/1439zw3tdq-cor.