Drainage of agricultural land: U.S. Soil Conservation Service, 1973. Water Information Center Inc., Port Washington,N. Y., 423 pp., U.S. $7.95期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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Drainage of agricultural land: U.S. Soil Conservation Service, 1973. Water Information Center Inc., Port Washington,N. Y., 423 pp., U.S. $7.95

Authors:	Glenn O Schwab

Institution:	Columbus, Ohio USA

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