This primary source comes from the Records of the Environmental Protection Agency.
National Archives Identifier:
544418Full Citation: 412-DA-1925; Arizona - Navajo Reservation; 5/1972; DOCUMERICA: The Environmental Protection Agency's Program to Photographically Document Subjects of Environmental Concern, 1972–1977; Records of the Environmental Protection Agency, Record Group 412; National Archives at College Park, College Park, MD. [Online Version, https://www.docsteach.org/documents/document/arizona-navajo-reservation, September 11, 2024]