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Productivity in Letterpress Printing. Nature 192, 1143 (1961). https://doi.org/10.1038/1921143a0
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DOI: https://doi.org/10.1038/1921143a0
Nature volume 192, page 1143 (1961)
Productivity in Letterpress Printing. Nature 192, 1143 (1961). https://doi.org/10.1038/1921143a0
Issue Date:
DOI: https://doi.org/10.1038/1921143a0