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  1. Cooperative agricultural extension work ...
    By: United States. - Lever, Asbury Francis,
    Publication info: Washington,Govt. print. off.,1913
    Contributed by: Library of Congress
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  2. Establishment of agricultural extension departments.
    By: United States. - Lever, Asbury Francis,
    Publication info: Washington,Govt. print. off.,1912
    Contributed by: Library of Congress
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  3. Hog cholera ... Report.
    By: United States. - Haugen, Gilbert Nelson, - Lever, Asbury Francis,
    Publication info: Washington,Govt. print. off.,1914
    Contributed by: Library of Congress
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