000 006480000a22002050004500
001 3938
010 _b(brochado)
090 _a3938
100 _a19940624d1994 m||y0pory5003 ba
102 _aCH
200 _aHydrological observation requirements in operational hydrological refertence basins
_fM. Spreafico
210 _aGeneva
_cWMO
_d1994
215 _a50 p.
_d30 cm
225 2 _aTechnical Reports in Hydrology and Water Resources
_v41
300 _aWMO/TD-Nº 610
317 _aOrigem: IM
500 1 0 _aTechnical Reports in Hydrological and Water Resources
_h41
606 _aOBSERVAÇÖES HIDROLOGICAS
675 _a551.5
_vmed
_zfre
700 1 _aSpreafico
_bM.