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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Gibbs, Charles S - Ken, Chen - Piao, Sheo
    Type: Article
    In: The Lingnaam agricultural review
    Volume: 4
    Issue: 1
    Date: 1927
    Page Range: 13--19
    Publication Info: Canton College Press 1922-
  2. By: Piao, Sheo - Gibbs, Charles S
    Type: Article
    In: The Lingnaam agricultural review
    Volume: 4
    Issue: 1
    Date: 1927
    Page Range: 20--29
    Publication Info: Canton College Press 1922-