R. E. Peary, Nearest the Pole. A Narrative of the Polar Expedition of the Peary Arctic Club in the S.S.Roosevelt, 1905 — 1906. London 1907.

Anthon Bjørnbo, A. (1908). R. E. Peary, Nearest the Pole. A Narrative of the Polar Expedition of the Peary Arctic Club in the S.S.Roosevelt, 1905 — 1906. London 1907. Geografisk Tidsskrift, 19. Hentet fra https://tidsskrift.dk/geografisktidsskrift/article/view/49399