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  1. Principles of economic zoölogy,
    By: Daugherty, Lewis Sylvester, - Daugherty, Millie Crum,
    Edition: 2d ed., rev., with 301 illustrations.
    Publication info: London,W. B. Saunders Company,1917.
    Contributed by: Library of Congress
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  2. Principles of economic zoölogy, by L. S. Daugherty and M. C. Daugherty. With 301 illustrations.
    By: Daugherty, Lewis Sylvester, - Daugherty, Millie Crum,
    Publication info: London,W. B. Saunders company,1912.
    Contributed by: Library of Congress
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  3. Principles of economic zoölogy, by L. S. Daugherty and M. C. Daugherty.
    By: Daugherty, Lewis Sylvester, - Daugherty, Millie Crum,
    Edition: 2d ed., rev., with 301 illustrations.
    Publication info: Philadelphia,W. B. Saunders,1917.
    Contributed by: NCSU Libraries (archive.org)
    View Book