Soil and water conservation news
Código CCN: 073171-4
| ISSN (Online): 0199-9060 |
| País: Não informado |
| Editor: U.S. Department of Agriculture, Soil Conservation Service |
| Imprenta:
Washington:
U.S. Department of Agriculture, Soil Conservation Service,
1980
|
| Área de numeração: Vol. 1, No. 1 (ABR. 1980)- |
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