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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Zech, James C. - Manning, Patricia R - Wagner, Warren H.‏ (Warren Herbert),‏
    Type: Article
    In: SIDA, contributions to botany
    Volume: 18
    Date: 1998
    Page Range: 307--313
    Publication Info: [Dallas, W. F. Mahler, etc.], 1962-