„United States Department Of The Interior (DOI)“

An executive department that has responsibility for most U.S. federal government owned public lands and natural resources; the principal U.S. conservation agency. The office of Territorial and International Affairs oversees activities pertaining to U.S. territorial lands and the Freely Associated States and coordinates the international affairs of the Department.

“The Department of the Interior: Its History and Its Work” by Edwards, Elsie Rathburn. Washington, D.C.: John Wiley & Sons, 1947.