Style de citation APA (7e éd.)

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.

Style de citation Chicago (17e éd.)

Freeman, Lewis R., et 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.

Style de citation MLA (8e éd.)

Freeman, Lewis R., et 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.

Attention : ces citations peuvent ne pas être correctes à 100%.