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Overseas Postal Rates for Nature. Nature 198, 1148 (1963). https://doi.org/10.1038/1981148c0
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DOI: https://doi.org/10.1038/1981148c0
Nature volume 198, page 1148 (1963)
Overseas Postal Rates for Nature. Nature 198, 1148 (1963). https://doi.org/10.1038/1981148c0
Issue Date:
DOI: https://doi.org/10.1038/1981148c0