Legislative principles of soil conservation.
| 1. Verfasser: | |
|---|---|
| Format: | Buch | 
| Sprache: | English | 
| Veröffentlicht: | Rome
          Food and Agriculture Organization of the United Nations
    
        [c1972]. | 
| Schriftenreihe: | Food and Agriculture Organization of the United Nations. Soils bulletin
              15 | 
| Schlagworte: |