1.
Soil Erosion and Conservation in the Tropics Proceedings of a Symposium
by Kussow, W., El-Swaify, Sami...
ISBN: 9780891180685
List Price: $8.50
2.
Determinants of Soil Loss Tolerance. Proc of Symp Held in Fort Collins, Colo., Aug 1979
by Schmidt, B. L., Allmaras, R...
ISBN: 9780891180715
List Price: $8.50