APA (7th ed.) Citation

(1978). British Columbia Alberta and the Yukon territory. National Geographic Society.

Chicago Style (17th ed.) Citation

British Columbia Alberta and the Yukon Territory. Washington, D.C: National Geographic Society, 1978.

MLA (9th ed.) Citation

British Columbia Alberta and the Yukon Territory. National Geographic Society, 1978.

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