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The Royal Geographical Society
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Science News a Century Ago. Nature 143, 909 (1939). https://doi.org/10.1038/143909b0
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DOI: https://doi.org/10.1038/143909b0
Nature volume 143, page 909 (1939)
The Royal Geographical Society
Science News a Century Ago. Nature 143, 909 (1939). https://doi.org/10.1038/143909b0
Issue Date:
DOI: https://doi.org/10.1038/143909b0