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His Fundamental aspects of ... 1967? His Biotech. and soil bioengineering slope stabilization, c1995: CIP t.p. (Donald H. Gray) data sheet (b. 12/14/36) Univ. of Mich SRC:Biotechnical and soil bioengineering slope stabilization : a practical guide for erosion control / Donald H. Gray, Robbin B. Sotir(John Wiley & Sons, c1996)
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