| Year | 1979 |
|---|---|
| Journal | Keskkonnakaitse. Informatsiooniseeria |
| Number | 5 |
| Pages | 1-2 |
| Type | article in journal |
| Estonian author | |
| Language | Estonian |
| Id | 29576 |
| Year | 1979 |
|---|---|
| Journal | Keskkonnakaitse. Informatsiooniseeria |
| Number | 5 |
| Pages | 1-2 |
| Type | article in journal |
| Estonian author | |
| Language | Estonian |
| Id | 29576 |