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1
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2by Morgan, Barton, 1889-Subjects: “...Iowa. State College of Agriculture and Mechanic Arts, Ames. Extension Service in Agriculture...”
Published 1934
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3
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4Published 1934Subjects: “...Agricultural extension work Iowa Periodicals....”
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5
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6Published 1910Subjects: “...Agricultural extension work Iowa Periodicals....”
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7Published 1921Subjects: “...Agricultural extension work Iowa Periodicals....”
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8Published 1907Subjects: “...Agricultural extension work Iowa Periodicals....”
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9
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10
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11
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12Published 1992Subjects: “...Agricultural extension work Iowa Periodicals....”
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