MLA
Sumner, George C. John Albert Monroe, a Memorial : Recollections of Him as Commander of Battery D. Published by the Society, 1892. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/880ht76nhp-cor.
APA, 6th edition
Sumner, G. C. (1892). John Albert Monroe, a memorial : recollections of him as commander of Battery D. Published by the Society; Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/880ht76nhp-cor.
Chicago
Sumner, George C. “John Albert Monroe, a Memorial : Recollections of Him as Commander of Battery D.” Regimental Histories. Providence: Published by the Society, 1892. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/880ht76nhp-cor.