Catchment management for optimum use of land and water resources    Aseminar on Documents from a ESCAP.    

 - Wellington  Ministry of work and development .       1982 
 - 218p  cm. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>X:U6715:8.937, M2