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New Trend in Teaching Science. Nature 216, 217 (1967). https://doi.org/10.1038/216217a0
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DOI: https://doi.org/10.1038/216217a0
Nature volume 216, page 217 (1967)
New Trend in Teaching Science. Nature 216, 217 (1967). https://doi.org/10.1038/216217a0
Issue Date:
DOI: https://doi.org/10.1038/216217a0