Manual on stream gauging  (vol 2) 
Secretariat of the World meteorological organisation 
 - Geneva  World meteorological Organisation  1980 
 - xiv, 258P. ill  Pbk 
<br/><br/><label>ISBN: </label>9263105197 
<br/><br/><label>LC Class. No.: </label>GB1201.W6.V.2