1.
雑誌 |
Instituto Nacional de Investigaciones Agronomicas
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2.
雑誌 |
U.S. Department of Agriculture
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3.
雑誌 |
大原農業研究所 ; 大原獎農會
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4.
雑誌 |
京都帝國大學工科大學 ; 京都帝國大學工學部
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5.
雑誌 |
Agricultural Experiment Station of the North Carolina State College of Agriculture and Engineering
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6.
雑誌 |
United States Department of Agriculture, Bureau of Animal Industry
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7.
雑誌 |
Agricultural Extension Division North Dakota Agricultural College
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8.
雑誌 |
Puerto Rico. Insular Experiment Station
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9.
雑誌 |
九州帝國大學工學部
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10.
雑誌 |
Agricultural Experiment Station, Kansas State College of Agriculture
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