00369nam a2200109   450000500170000000800410001702000150005805000180007324500920009126000520018330000240023520260615103824.0260615b        |||||||| |||| 00| 0 eng d  a9263105197  aGB1201.W6.V.2  aManual on stream gaugingb(vol 2)cSecretariat of the World meteorological organisation  aGenevabWorld meteorological Organisationc1980  axiv, 258P. illbPbk