MLA
Lee, Stephen D. (Stephen Dill), 1833-1908. Letter from Stephen Dill Lee (Columbus, Mississippi) to General William E. Mickle (New Orleans, Louisiana), Adjutant General of the United Confederate Veterans organization, regarding United Confederate Veterans business - September 30, 1908. September 30, 1908. Civil War Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/576rxwdcvq-cor.
APA, 6th edition
Lee, Stephen D. (Stephen Dill), 1833-1908. (September 30, 1908)[Letter from Stephen Dill Lee (Columbus, Mississippi) to General William E. Mickle (New Orleans, Louisiana), Adjutant General of the United Confederate Veterans organization, regarding United Confederate Veterans business - September 30, 1908]. Civil War Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/576rxwdcvq-cor.
Chicago
Lee, Stephen D. (Stephen Dill), 1833-1908, Letter from Stephen Dill Lee (Columbus, Mississippi) to General William E. Mickle (New Orleans, Louisiana), Adjutant General of the United Confederate Veterans organization, regarding United Confederate Veterans business - September 30, 1908, September 30, 1908, Civil War Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/576rxwdcvq-cor.