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  1. A new nematode, Ostertagia bullosa, parasitic in the alimentary tract of sheep,
    By: Ransom, Brayton Howard, - Hall, Maurice C.
    Publication info: Washington,Govt. print. off.,1912.
    Contributed by: Library of Congress
    Subjects: Ostertagia bullosa  Parasites  Sheep  
    BHL Collections: Library of Congress
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