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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Borradaile, L. A. (Lancelot Alexander), - Yapp, W. B. (William Brunsdon)
    Edition: 13th ed. rev. by W.B. Yapp.
    Publication info: London, Oxford University Press, 1958
    Holding Institution: MBLWHOI Library
  1. By: Yapp, W. B. (William Brunsdon)
    Type: Article
    In: The Wilson bulletin
    Volume: 78
    Issue: 1
    Date: 1966
    Page Range: 110--110
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-
  2. By: Yapp, W. B. (William Brunsdon)
    Type: Article
    In: The Wilson bulletin
    Volume: 68
    Issue: 4
    Date: 1956
    Page Range: 312--319
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-