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The Registrar General's Quarterly Return for England and Wales . Nature 203, 1122 (1964). https://doi.org/10.1038/2031122a0
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DOI: https://doi.org/10.1038/2031122a0
Nature volume 203, page 1122 (1964)
The Registrar General's Quarterly Return for England and Wales . Nature 203, 1122 (1964). https://doi.org/10.1038/2031122a0
Issue Date:
DOI: https://doi.org/10.1038/2031122a0