Morton C. Helm, Assistant Supervisor, Indian Employment, Pierre, South Dakota, to J.J. Duncan.

Chicago citation style
Department of the Interior. Office of Indian Affairs. Pine Ridge Agency. 1878-9/17/1947. Morton C. Helm, Assistant Supervisor, Indian Employment, Pierre, South Dakota, to J.J. Duncan.. 1911-04-26. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/284182. (Accessed June 18, 2018.)
APA citation style
Department of the Interior. Office of Indian Affairs. Pine Ridge Agency. 1878-9/17/1947, (1911-04-26) Morton C. Helm, Assistant Supervisor, Indian Employment, Pierre, South Dakota, to J.J. Duncan.. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/284182
MLA citation style
Department of the Interior. Office of Indian Affairs. Pine Ridge Agency. 1878-9/17/1947. Retrieved from the Digital Public Library of America <http://catalog.archives.gov/id/284182>.
Note: These citations are programmatically generated and may be incomplete.