APA (7th ed.) Citation

Freeman, L. R., & Harmon, B. (1925). Mother of rivers: An account of a photographic expedition to the great Columbia ice field of the Canadian Rockies. National Geographic Society.

Chicago Style (17th ed.) Citation

Freeman, Lewis R., and Byron Harmon. Mother of Rivers: An Account of a Photographic Expedition to the Great Columbia Ice Field of the Canadian Rockies. [Washington, D.C.: National Geographic Society, 1925.

MLA (8th ed.) Citation

Freeman, Lewis R., and Byron Harmon. Mother of Rivers: An Account of a Photographic Expedition to the Great Columbia Ice Field of the Canadian Rockies. National Geographic Society, 1925.

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