MLA

of Indian Affairs, United States. Office. Map of Osage Indian Reservation, Oklahoma : 1911 / Department of the Interior, Office of Indian Affairs. Office of Indian Affairs, 1911. https://collections.library.yale.edu/catalog/15827851.

APA, 6th edition

of Indian Affairs, U. S. O. (1911). Map of Osage Indian Reservation, Oklahoma : 1911 / Department of the Interior, Office of Indian Affairs. [Maps]. Office of Indian Affairs, https://collections.library.yale.edu/catalog/15827851.