Howarth, W., & Mobley, G. F. (1987). Traveling the Trans-Canada: From Newfoundland to British Columbia. National Geographic Society.
Citazione stile Chigago Style (17a edizione)Howarth, William, e George F. Mobley. Traveling the Trans-Canada: From Newfoundland to British Columbia. Washington: National Geographic Society, 1987.
Citatione MLA (9a ed.)Howarth, William, e George F. Mobley. Traveling the Trans-Canada: From Newfoundland to British Columbia. National Geographic Society, 1987.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.