| |
| 32 |
A framework for land evaluation, 1976 |
1976 |
Report |
 |
|
| 31 |
Prognosis of salinity and alkalinity, 1976 |
1976 |
Report |
|
|
| 30 |
Soil conservation for developing countries, 1976 |
1976 |
Report |
|
|
| 29 |
Land evaluation in Europe, 1975 |
1975 |
Report |
|
|
| 28 |
S.I. Units and nomenclature in soil science, 1975 |
1975 |
Report |
|
|
| 27 |
Organic materials as fertilizers, 1975 |
1975 |
Report |
|
|
| 26 |
Planning and organization of fertilizer development in Africa, 1975 |
1975 |
Report |
|
|
| 25 |
Sandy soils, 1975 |
1975 |
Report |
|
|
| 23 |
Management properties of ferralsols, 1974 |
1974 |
Report |
|
|
| 22 |
Approaches to land classification, 1974 |
1974 |
Report |
|
|
|
