TY  - BOOK
ED  - Unesco.
TI  - Report of the UNESCO/WMO/ICSU International Conference on Hydrology : : Towardsthe 21st century; research and operational needs
PY  - 1993///
CY  - París : 
PB  - Unesco, 
KW  - Hydrología
KW  - Congresos
ER  -