National Aquatic Resources Agency <br/><br/>
National Hydrographic Office: Focal point of Hydrography in Sri Lanka 

 - Colombo,  Nara,  1994, 
 - 24p.  29.5cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Focal Point of Hydrography <br/>National Hydrographic Office