Finding fish with echo-sounders.
| Format: | Llibre |
|---|---|
| Idioma: | English |
| Publicat: |
Rome
Food and Agriculture Organization
c1985.
|
| Matèries: |
| Format: | Llibre |
|---|---|
| Idioma: | English |
| Publicat: |
Rome
Food and Agriculture Organization
c1985.
|
| Matèries: |