Hydrological data :  water quality records / 
Ministry of Agriculture and Rural Development 
 - Kuala Lumpur:  Publications Unit, Ministry of Agriculture and Fisheries,  1974 
 - v :  ill. ;  25 cm. 
 - Annual 
<br/><br/> Kepunyaan PTSL : 1974-1980 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hydrology--Malaysia<br/>Water quality--Malaysia--Measurement