Establishment of agricultural extension departments United States. Congress. House. Committee on Agriculture. creator United States. Congress. House. Committee on Agriculture. creator Lever, Asbury Francis, 1875-1940 contributor text book Washington Govt. print. off 1912 1912
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ENG Agricultural extension work Agricultural laws and legislation United States S533 .A4 1912 https://www.biodiversitylibrary.org/bibliography/34968 12035484 10.5962/bhl.title.34968 DLC