1.

図書
図書
1. Irrigation and drainage in Japan pictorial. 2nd ed
by International Affairs Commission of The Japanese Society of Irrigation, Drainage and Reclamation Engineering
出版情報: Tokyo : Japanese Society of Irrigation, Drainage and Reclamation Engineering, 1989
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2.

図書
図書
2. Irrigation and drainage in Japan. 2nd ed
by International Affairs Commission of The Japanese Society of Irrigation, Drainage and Reclamation Enginnering
出版情報: Tokyo : Japanese Society of Irrigation, Drainage and Reclamation Engineering, 1989
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3.

図書
図書
3. 農業土木ハンドブック. 改訂5版
農業土木学会編
出版情報: 東京 : 農業土木学会, 1989.7
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