Long-term planning of water management : proceedings of the Seminar on Long-Term Planning of Water Management, Zlatni Piasatzi, Bulgaria, 17-22 May 1976
Seminar on Long-Term Planning of Water Management
Bok Engelsk 1976
| Utgitt | New York : United Nations , 1976
|
|---|---|
| Omfang | 3 b.
|
| Opplysninger | At head of title: Economic Commission for Europe.
|
| Emner | |
| Dewey |
