Optimum erosion control at least cost : proceedings of the National Symposium on Conservation Systems, December 14-15, 1987, Hyatt Regency Chicago in Illinois Center
National Symposium on Conservation Systems
Bok Engelsk 1987
| Utgitt | St. Joseph, Mich. : American Society of Agricultural Engineers , c1987
|
|---|---|
| Omfang | vii, 418 s. : fig.
|
| Emner | |
| ISBN | 0916150895
|
