Cita APA

National Geographic Society. Cartographic Division, & National Geographic Society. Cartographic Division. (1970). The world. Washington: [editor no identificado].

Citación estilo Chicago

National Geographic Society. Cartographic Division, y National Geographic Society. Cartographic Division. The World. Washington: [editor no identificado], 1970.

Cita MLA

National Geographic Society. Cartographic Division, y National Geographic Society. Cartographic Division. The World. Washington: [editor no identificado], 1970.

Precaución: Estas citas no son 100% exactas.