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Field Studies and Teaching Methods. Nature 179, 457 (1957). https://doi.org/10.1038/179457b0
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DOI: https://doi.org/10.1038/179457b0
Nature volume 179, page 457 (1957)
Field Studies and Teaching Methods. Nature 179, 457 (1957). https://doi.org/10.1038/179457b0
Issue Date:
DOI: https://doi.org/10.1038/179457b0