MLA
Sambertt[?], Joseph. Letter from Joseph Sambertt[?] (Carrollton, Georgia) to Josiah Perkins - February 22, 1852 (Photocopy). 1852. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 4, Folder 50. https://digital.library.emory.edu/purl/969866t2kj-cor.
APA, 6th edition
Sambertt[?], J. (1852). Letter from Joseph Sambertt[?] (Carrollton, Georgia) to Josiah Perkins - February 22, 1852 (photocopy) (Box 4, Folder 50) [Letters (correspondence)]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/969866t2kj-cor.
Chicago
Sambertt[?], Joseph. “Letter from Joseph Sambertt[?] (Carrollton, Georgia) to Josiah Perkins - February 22, 1852 (Photocopy).” Letters (correspondence). Civil War Collection, 1852. Box 4, Folder 50. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/969866t2kj-cor.