Letter from F. A. Walker to Henry Gregory

Chicago citation style
Department of the Interior. Office of Indian Affairs. Ponca Agency. 11/1/1870-1919. Letter from F. A. Walker to Henry Gregory. 1872-07-31. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/7553816. (Accessed November 20, 2018.)
APA citation style
Department of the Interior. Office of Indian Affairs. Ponca Agency. 11/1/1870-1919, (1872-07-31) Letter from F. A. Walker to Henry Gregory. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/7553816
MLA citation style
Department of the Interior. Office of Indian Affairs. Ponca Agency. 11/1/1870-1919. Retrieved from the Digital Public Library of America <http://catalog.archives.gov/id/7553816>.
Note: These citations are programmatically generated and may be incomplete.