"North of 62 Degrees by Automobile :A Story of a Trip in Alaska, British Columbia, Yukon Territory and the Klondike ALASKA HAS A GREAT AREA AND RESOURCES.
Accesat în 14 iulie 2011.  ^ Percival, C Gilbert (1912). „North of 62 Degrees by Automobile :A Story of a Trip in Alaska, British Columbia, Yukon Territory and the Klondike ALASKA HAS A GREAT AREA AND RESOURCES.