NIEUWENHUYSEN, PAUL. <br/><br/>
SCIENTIFIC AND TECHNICAL WATER-RELATED DOCUMENTARY AND INFORMATION SYSTEMS/ 
PAUL. NIEUWENHUYSEN 
 - Paris :  UNESCO,  1989 
 - 51 pages 
 - Technical documents in hydrology .
<br/><br/><br/>In English 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hydrology
<br/><br/><label>Universal Decimal Class. No.: </label>551.49