Hydrological yearbook /  
compiled by the water development and irr igation division, ministry of lands, settlements, and water development . 
 - Dar es Salaam :    Library Photographic Unit ,    1950- 
 - v. :    ill. ;    33 cm. 
 - Annual 
 - 1950- 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Hydrology -- Tanzania -- Periodicals.<br/> Meteorology -- Tanzania -- Periodicals.
<br/><br/><label>Gov. Doc. Class. No.: </label>G EAT L35  (058) 2