Legislative principles of soil conservation.
| Príomhchruthaitheoir: | |
|---|---|
| Formáid: | LEABHAR | 
| Teanga: | English | 
| Foilsithe / Cruthaithe: | Rome
          Food and Agriculture Organization of the United Nations
    
        [c1972]. | 
| Sraith: | Food and Agriculture Organization of the United Nations. Soils bulletin
              15 | 
| Ábhair: |