MLA
Goulding, F. R. (Francis Robert), 1810-1881. Robert and Harold, or, The young marooners on the Florida coast. 1863. Civil War Imprints. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/313zs7h7jd-cor.
APA, 6th edition
Goulding, F. R. (Francis Robert), 1810-1881. (1863)[Robert and Harold, or, The young marooners on the Florida coast, Revised and enlarged.]. Civil War Imprints, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/313zs7h7jd-cor.
Chicago
Goulding, F. R. (Francis Robert), 1810-1881, Robert and Harold, or, The young marooners on the Florida coast, 1863, Civil War Imprints, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/313zs7h7jd-cor.