MLA
Communication of Secretary of War ... : Feb. 22, 1865 [Relative to the Number of Able-Bodied Men between the Ages of Eighteen and Forty-Five. [publisher not identified], 1865. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/129p2ngj1s-cor.
APA, 6th edition
Communication of Secretary of war ... : Feb. 22, 1865 [relative to the number of able-bodied men between the ages of eighteen and forty-five. (1865). [publisher not identified]; Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/129p2ngj1s-cor.
Chicago
“Communication of Secretary of War ... : Feb. 22, 1865 [Relative to the Number of Able-Bodied Men between the Ages of Eighteen and Forty-Five.” Civil War Imprints. Richmond: [publisher not identified], 1865. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/129p2ngj1s-cor.