Cita APA (7th ed.)

Bryce, G. (1910). The siege and conquest of the North Pole (1a. ed.). Gibbinsgs & Company limited.

Cita Chicago (17th ed.)

Bryce, George. The Siege and Conquest of the North Pole. 1a. ed. Londres: Gibbinsgs & Company limited, 1910.

Cita MLA (9th ed.)

Bryce, George. The Siege and Conquest of the North Pole. 1a. ed. Gibbinsgs & Company limited, 1910.