MORGAN, R. (1995). Soil erosion and conservation.-- Ed.2. Longman.
Chicago-čujuhus (17. p.)MORGAN, R.P.C. Soil Erosion and Conservation.-- Ed.2. England: Longman, 1995.
MLA-čujuhus (9. p.)MORGAN, R.P.C. Soil Erosion and Conservation.-- Ed.2. Longman, 1995.
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