APA (7th ed.) Citation

National Geographic Society (U.S.). Cartographic Division. (1950). Western Europe. [publisher not identified].

Chicago Style (17th ed.) Citation

National Geographic Society (U.S.). Cartographic Division. Western Europe. Washington: [publisher not identified], 1950.

MLA (9th ed.) Citation

National Geographic Society (U.S.). Cartographic Division. Western Europe. [publisher not identified], 1950.

Warning: These citations may not always be 100% accurate.