Search Results - Leong, Yau Sing, 1899-

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    Silver : an analysis of factors affecting its price / by Leong, Yau Sing, 1899-

    Published 1933
    Book

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  2. 2
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    Technology, employment, and output per man in copper mining / by Leong, Yau Sing, 1899-

    Published 1940
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    Government Document eBook

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  3. 3
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    Technology, employment, and output per man in copper mining /

    Published 1940
    Other Authors: “…Leong, Yau Sing, 1899-…”
    Search for the full-text version of this title in HathiTrust
    Government Document Book

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