APA (7th ed.) Citation

National Geographic Society (U.S.). Special Publications Division. (1969). Exploring Canada from sea to sea ([2d ed.].). [publisher not identified].

Chicago Style (17th ed.) Citation

National Geographic Society (U.S.). Special Publications Division. Exploring Canada from Sea to Sea. [2d ed.]. Washington: [publisher not identified], 1969.

MLA (9th ed.) Citation

National Geographic Society (U.S.). Special Publications Division. Exploring Canada from Sea to Sea. [2d ed.]. [publisher not identified], 1969.