Haku
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Central Spitsbergen from sketch surveys made in 1896 and 1897
([London] : Royal Geographical SocietyRoyal Geographical Society, 1898)
Sketch map of part of Spitzbergen
([London] : Royal Geographical SocietyRoyal Geographical Society, 1897)
Sketch map of part of Spitzbergen
([London] : Royal Geographical SocietyRoyal Geographical Society, 1897)