1.
図書 |
小野武夫著
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2.
図書 |
福本和夫著
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3.
図書 |
by Mack M. Jones
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4.
図書 |
by Mack M. Jones
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5.
図書 |
prepared by specialists in the United States Department of Agriculture ; under the editorial supervision of Gustav E. Larson
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6.
図書 |
prepared by members of the Division of Farm Management and Costs, Bureau of Agricultural Economics, U.S.D.A.
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