000 003320000a22001330004500
245 _aHydrological forecasting practices
110 _aWorld Meteorological Organization
260 _aGeneva
_bWMO
_c1975
440 _aOperational hydrological report
440 _aNo. 6
080 _a627.1
_bW6
041 _aEN
942 _cBK
999 _c110741
_d110741