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International Survey of Programmes of Social Development. Nature 177, 421–422 (1956). https://doi.org/10.1038/177421b0
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DOI: https://doi.org/10.1038/177421b0
Nature volume 177, pages 421–422 (1956)
International Survey of Programmes of Social Development. Nature 177, 421–422 (1956). https://doi.org/10.1038/177421b0
Issue Date:
DOI: https://doi.org/10.1038/177421b0