MLA
Brett, Martin W. Memoir of Brett W. Martin, Member of Company F of the 12th Georgia Infantry Regiment (Dooly County, Georgia). The Memoir Details Events between 1861 and 1865. Includes an Original Letter from Martin W. Brett (Rome, Georgia) to J. M. Brown (Montezuma, Georgia), November 16, 1905 Regarding the Memoir. 1861. Stuart A. Rose Manuscript, Archives, and Rare Book Library, BV4. https://digital.library.emory.edu/purl/146qz613sn-cor.
APA, 6th edition
Brett, M. W. (1861). Memoir of Brett W. Martin, member of Company F of the 12th Georgia Infantry Regiment (Dooly County, Georgia). The memoir details events between 1861 and 1865. Includes an original letter from Martin W. Brett (Rome, Georgia) to J. M. Brown (Montezuma, Georgia), November 16, 1905 regarding the memoir (BV4) [Memoirs]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/146qz613sn-cor.
Chicago
Brett, Martin W. “Memoir of Brett W. Martin, Member of Company F of the 12th Georgia Infantry Regiment (Dooly County, Georgia). The Memoir Details Events between 1861 and 1865. Includes an Original Letter from Martin W. Brett (Rome, Georgia) to J. M. Brown (Montezuma, Georgia), November 16, 1905 Regarding the Memoir.” Memoirs. Civil War Collection, 1861. BV4. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/146qz613sn-cor.