MLA
Oath to the Government of the Union for William A. Law, Signed by Lieutenant W. K. Norton (Raleigh, North Carolina) of the 9th Maine Volunteers. 1865. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 4, Folder 38. https://digital.library.emory.edu/purl/5977sqvbtc-cor.
APA, 6th edition
Oath to the Government of the Union for William A. Law, signed by Lieutenant W. K. Norton (Raleigh, North Carolina) of the 9th Maine Volunteers (Box 4, Folder 38). (1865). [Testimonies]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/5977sqvbtc-cor.
Chicago
“Oath to the Government of the Union for William A. Law, Signed by Lieutenant W. K. Norton (Raleigh, North Carolina) of the 9th Maine Volunteers.” Testimonies. Civil War Collection, 1865. Box 4, Folder 38. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/5977sqvbtc-cor.