MLA
Rivers, R. H. (Richard Henderson), 1814-1894. Elements of mental philosophy. 1862. Civil War Imprints. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/122v41nwdb-cor.
APA, 6th edition
Rivers, R. H. (Richard Henderson), 1814-1894. (1862)[Elements of mental philosophy]. Civil War Imprints, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/122v41nwdb-cor.
Chicago
Rivers, R. H. (Richard Henderson), 1814-1894, Elements of mental philosophy, 1862, Civil War Imprints, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/122v41nwdb-cor.