Report of Brigadier-General O.O. Howard, Brevet Major-General U.S. Army, commanding Department of the Columbia : September 18, 1880.
MLA
Howard, O. O. (Oliver Otis), 1830-1909, United States. Army. Dept. of the Columbia. Report of Brigadier-General O.O. Howard, Brevet Major-General U.S. Army, commanding Department of the Columbia : September 18, 1880.. 1880. https://collections.library.yale.edu/catalog/11872826.
APA, 6th edition
Howard, O. O. (Oliver Otis), 1830-1909, & United States. Army. Dept. of the Columbia. (1880)[Report of Brigadier-General O.O. Howard, Brevet Major-General U.S. Army, commanding Department of the Columbia : September 18, 1880.]. https://collections.library.yale.edu/catalog/11872826.