MLA
Dagg, J. L. (John Leadley), 1794-1884. The grammar of the English language : book first : progressive lessons in English grammar. 1864. Civil War Imprints. Emory University. General Libraries. https://digital.library.emory.edu/purl/453wstqnzp-cor.
APA, 6th edition
Dagg, J. L. (John Leadley), 1794-1884. (1864)[The grammar of the English language : book first : progressive lessons in English grammar]. Civil War Imprints, Emory University. General Libraries. https://digital.library.emory.edu/purl/453wstqnzp-cor.
Chicago
Dagg, J. L. (John Leadley), 1794-1884, The grammar of the English language : book first : progressive lessons in English grammar, 1864, Civil War Imprints, Emory University. General Libraries. https://digital.library.emory.edu/purl/453wstqnzp-cor.