Hydrological year book 

 - Dar es Salaam  Ministry of Agriculture & Livestock Development  1960-1965 
 - 605p.  33cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hydrology
<br/><br/><label>LC Class. No.: </label>EAF QTO GB881.T3T32