Cite
HARVARD Citation
Larson, E. (2018) To the edges of the Earth : 1909, the race for the three poles, and the climax of the age of exploration. [Online]. New York, NY : William Morrow, an imprint of HarperCollinsPublishers. Available from: http://access.bl.uk/ark:/81055/vdc_100056902595.0x000001