Soil conservation /
| Autor principal: | |
|---|---|
| Formato: | Libro |
| Lenguaje: | English |
| Publicado: |
New York :
McGraw-Hill Book Company,
©1939
|
| Edición: | 1st ed |
| Colección: | McGraw-Hill Series in Geography
|
| Materias: |
| Autor principal: | |
|---|---|
| Formato: | Libro |
| Lenguaje: | English |
| Publicado: |
New York :
McGraw-Hill Book Company,
©1939
|
| Edición: | 1st ed |
| Colección: | McGraw-Hill Series in Geography
|
| Materias: |