MLA
Permission Order to Allow Major John T. Champney to Visit Richmond from Provost Marshal's Office. 1862. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 2, Folder 12. https://digital.library.emory.edu/purl/156zw3r334-cor.
APA, 6th edition
Permission Order to allow Major John T. Champney to visit Richmond from Provost Marshal's Office (Box 2, Folder 12). (1862). [Orders (military records)]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/156zw3r334-cor.
Chicago
“Permission Order to Allow Major John T. Champney to Visit Richmond from Provost Marshal's Office.” Orders (military records). Civil War Collection, 1862. Box 2, Folder 12. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/156zw3r334-cor.