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  1. A monograph on the Polychaeta of southern Africa / By J.H. Day, &c.
    By: Day, J. H. - British Museum (Natural History).
    Publication info: London :BM(NH),1967.
    Contributed by: Natural History Museum Library, London
    BHL Collections: Natural History Museum Library, London
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  2. New polychaeta from Beaufort : with a key to all species recorded from North Carolina /
    By: Day, J. H.
    Publication info: Seattle :For sale by the Supt. of Docs., U.S. G.P.O.,1973.
    Contributed by: Penn State University (archive.org)
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