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- 農業機械学会 (11)
- 農林水産省構造改善局 (7)
- 全国農業改良普及協会 (6)
- 森, 周六 (5)
- 農業機械化研究所 (5)
- Schilling, Erich (4)
- 日本農業機械化協会 (4)
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- Davidson, J. Brownlee (Jay Brownlee), 1880- (3)
- Schewior, G. (Georg), 1870- (3)
- Widtsoe, John Andreas, 1872-1952 (3)
- 中村, 忠次郎 (3)
- 内田, 繁太郎 (3)
- 大石, 芳平 (3)
- 牧, 隆泰(1887-) (3)
- 農林省構造改善局 (3)
- 農林省農務局 (3)
- 農林省農政局 (1941-1952) (3)
- 農業土木学会 (3)
- 鏑木, 豪夫 (3)
- Barger, E. L. (Edgar Lee) (2)
- Bowers, Wendell (2)
- Davis, Arthur Powell, 1861-1932 (2)
- Etcheverry, Bernard A. (Bernard Alfred), 1881-1954 (2)
- Israelsen, Orson Winso, 1887-1968 (2)
- Ivanov, I. S. (2)
- Jones, Fred R. (2)
- Kochurov, N. I. (2)
- Lévy Salvador, Paul (2)
- McColly, H. F. (2)
- Savage, William G. (William George), 1872-1961 (2)
- Schewior, Georg (2)
- Stone, Archie Augustus, 1893-1977 (2)
- Teele, R. P. (Ray Palmer), 1868-1927 (2)
- Vogler, Christian Wilhelm Jacob August, 1841- (2)
- Wilson, Herbert M. (Herbert Michael), 1860-1920 (2)
- Wooley, John Cochran (2)
- 上野, 英三郎(1871-1925) (2)
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- 庄司, 英信 (2)
- 恒田, 嘉文 (2)
- 新農林社 (2)
- 新農業教育研究会 (2)
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- 水谷, 正一(1948-) (2)
- 江崎, 春雄 (2)
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- 農林水産省関東農政局 (2)
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- 近坂, 百一 (2)
- 関東農政局長野平農業水利事業所 (2)
- Abashkin, V. A. (1)
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- Allan, J. A. (1)
- Allen, Arthur H. (1)
- Alpatʹev, S. M. (1)
- American Society of Civil Engineers (1)
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- Antoshkevich, V. S. (Viktor Stepanovich) (1)
- Ayres, Quincy Claude, 1891- (1)
- Bainer, Roy, 1902- (1)
- Barre, Henry J. (Henry John), 1905- (1)
- Behrends, Frederick Gardner, 1894- (1)
- Bern, Carl Joseph, 1940- (1)
- Best, Robin Hewitson (1)
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- Biesalski, E (1)
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- Bligh, W. G. (William George), b. 1846 (1)
- Blumenthal, R. (1)
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- Bond, J. R. (James Ryding) (1)
- Bornemann, F. (Felix), 1861-1932 (1)
- Boroshok, L. A. (Lev Abramovich) (1)
- Boshoff, W. H. (1)
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- Butorin, I. M. (Innokentiĭ Mikhaĭlovich) (1)
- Carter, Deane G., 1894-1980 (1)
- Chase, Leon Wilson (1)
- Clark, Colin, 1905- (1)
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- Coppock, J. T. (John Terence) (1)
- Crosley, William. (1)
- no value (10)