Cita APA

National Geographic Society. Cartographic Division. (1973). The Northwest. Washington: [editor no identificado].

Citación estilo Chicago

National Geographic Society. Cartographic Division. The Northwest. Washington: [editor no identificado], 1973.

Cita MLA

National Geographic Society. Cartographic Division. The Northwest. Washington: [editor no identificado], 1973.

Precaución: Estas citas no son 100% exactas.