U.S.S.R.; official standard names approved by the United States Board on Geographic Names.
United States.Geographic Names Division.
United States.Office of Geography.U.S.S.R. and certain neighboring areas.
United States Board on Geographic Names.
Washington,
1970-
Issued in 1959 by the U.S. Office of Geography under title: U.S.S.R. and certain neighboring areas.
Microfiche.