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Coal Resources of the World. Spitzbergen (Norway). Map No. 48. Geological Map of Spitzbergen from the Maps of Nordenskiold, De Geer, Tschernyschew, Backlund, Bruce, Hoel, and perso...

by Nathorst, A.G.; De Geer; Backlund; Bruce; Hoel, Murray Printing Co. Limited, McInnes, William; Dowling, D.B.; Leach, W.W.
Published 1913