Bryce, G. (1910). The siege and conquest of the North Pole (1a. ed.). Gibbinsgs & Company limited.
Lua i Stíl Chicago (17ú heag.)Bryce, George. The Siege and Conquest of the North Pole. 1a. ed. Londres: Gibbinsgs & Company limited, 1910.
Lua MLA (9ú heag.)Bryce, George. The Siege and Conquest of the North Pole. 1a. ed. Gibbinsgs & Company limited, 1910.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.