Cita APA (7a ed.)
National Geographic Society. (1979). SASKATCHEWAN MANITOBA NORTHWEST TERRITORIES.
Cita estilo Chicago (17a ed.)
National Geographic Society. SASKATCHEWAN MANITOBA NORTHWEST TERRITORIES. 1979.
Cita MLA (9a ed.)
National Geographic Society. SASKATCHEWAN MANITOBA NORTHWEST TERRITORIES. 1979.
Precaución: Estas citas no son 100% exactas.