MLA
Lapham, Oscar. Recollections of Service in the Twelfth Regiment, R.I. Volunteers. Published by the Society, 1885. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/97634tmtkr-cor.
APA, 6th edition
Lapham, O. (1885). Recollections of service in the Twelfth Regiment, R.I. Volunteers. Published by the Society; Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/97634tmtkr-cor.
Chicago
Lapham, Oscar. “Recollections of Service in the Twelfth Regiment, R.I. Volunteers.” Regimental Histories. Providence: Published by the Society, 1885. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/97634tmtkr-cor.