1.

図書
図書
1. Soil erosion : causes and mechanisms, prevention and control : proceedings of a Conference-Workshop held January 26, 1973, Washington, D.C.
cosponsored by National Science Foundation
出版情報: Washington : Highway Research Board, National Research Council, 1973
シリーズ名: Highway Research Board special report ; 135
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2.

図書
図書
2. Soil erosion on agricultural land
edited by J. Boardman, I.D.L. Foster, and J.A. Dearing
出版情報: Chichester, West Sussex, England ; New York : J. Wiley, c1990
シリーズ名: British Geomorphological Research Group symposia series
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