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Manpower. Nature 212, 227–228 (1966). https://doi.org/10.1038/212227a0
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DOI: https://doi.org/10.1038/212227a0
Nature volume 212, pages 227–228 (1966)
Manpower. Nature 212, 227–228 (1966). https://doi.org/10.1038/212227a0
Issue Date:
DOI: https://doi.org/10.1038/212227a0