Ecological effects of human activities on the value and resources of lakes, marshes, rivers, deltas, estuaries and coastal zones, London 19-22 September 1972 : final report
Finna-arvio
Ecological effects of human activities on the value and resources of lakes, marshes, rivers, deltas, estuaries and coastal zones, London 19-22 September 1972 : final report
Tallennettuna:
| Ulkoasu |
49 sivua |
|---|---|
| Kieli |
englanti |
| Alkuteoksen kieli |
englanti |
| Huomautukset |
SC.72/Conf.142/3. |
| Julkaisija |
Paris :
Unesco,
1972.
|